Worldwide Shipping from Japan
Handcrafted in Japan.
Shipped Worldwide.
Designed for walking, running, movement, and exploration.
ippon blade™ is a modern reinterpretation of traditional Japanese single-tooth geta.
Designed around a simple one-axis structure, it helps you explore balance, posture, and natural movement through direct physical experience.
Whether used for walking, training, travel, or daily life, ippon blade™ offers a unique way to reconnect with your body—one step at a time.
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Shipping & Delivery
• Shipping fees are calculated separately and displayed at checkout.
• Each pair is handcrafted to order in Japan.
• Orders are usually prepared and shipped within approximately 20 days.
• International delivery times vary by destination.
• Multiple payment methods are available at checkout depending on your country and region.
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Taxes / VAT / Customs
Import duties, VAT, and customs fees may apply depending on your country's regulations.
These charges are not included in the product price and are the responsibility of the customer.
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Safety First
For your first use, begin near a wall or stable support.
Start with 3–5 minutes on a flat surface and gradually increase usage as your balance improves.
Ways to Use ippon blade™
Walk
Develop a lighter, more natural way of walking while improving posture and body awareness.
Train
Challenge balance, coordination, foot control, and whole-body movement.
Explore
Experience parks, trails, cities, and travel from a different perspective.
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Choose Your Model
ippon blade 369 (MIROKU)
Best for advanced users.
Designed using the Fibonacci Golden Ratio.
A higher model created for running, dynamic movement, and advanced balance training.
Recommended for experienced users seeking maximum challenge.
ippon blade 1000 (ZEN)
Best for beginners.
Designed using the traditional Japanese Yamato Ratio.
A lower, more stable model suited for walking, daily use, travel, and beginners.
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Why ippon blade™?
Created by Ten Kodaira, the first person to complete a 100 km ultramarathon wearing traditional single-tooth geta.
ippon blade™ combines Japanese craftsmanship, real-world testing, and over a decade of movement exploration.
It is not designed to force a specific technique.
It helps you discover balance, posture, coordination, and natural movement through direct experience.
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What's Included
• Premium Instruction Video
• Spare Rubber Sole Set
• One extra pair of replacement Sanada straps
• Reinforced International Packaging
• English Manual & Support
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ippon blade®︎ is a registered trademark in Japan.
Trademark registration in additional countries is currently in progress.
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Move with gravity.
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New to ippon blade™?
Read the Beginner's Guide & FAQ →https://tenari.co.jp/?p=29523
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ippon blade 369 (miroku) / SEIRYU
¥47,800($291.58)
⚠️ Import Duties Notice Import duties, VAT, and customs fees are NOT included. These charges are determined by your country and must be paid by the recipient. If unpaid, the package may be held or returned. ⸻ ippon blade™ 369 (MIROKU) High-Rise Model Best for advanced users. Designed using the Fibonacci Golden Ratio. 369 (MIROKU) is the most challenging model in the ippon blade™ lineup. Its higher structure requires greater balance and body control, making it ideal for dynamic movement, running, martial arts, dance, and advanced balance training. Recommended for experienced users seeking maximum challenge and movement awareness. ⸻ Why Choose 369 (MIROKU)? • Advanced balance training • Greater center-of-mass control • Improved coordination and movement precision • Increased body awareness • Suitable for running, martial arts, dance, and athletic training Because of its height, this model carries a greater risk of falling than 1000 (ZEN). Please begin slowly and allow your body to adapt gradually. ⸻ Color Concept Each color represents a concept, not a difference in performance. Choose the one that resonates with you. SEIRYU (Blue) Inspired by Seiryu, the Blue Dragon of the East. A symbol of flow, adaptability, precision, and focused movement. ⸻ Materials Hanao (Strap) Traditional Sanada Himo Platform Japanese Paulownia Wood Tooth Japanese Magnolia Wood Handcrafted in Japan. ⸻ Size Guide Measure your bare foot length from heel to longest toe. S: 21–23 cm SM: 23–24 cm M: 24–25 cm L: 25–26 cm LL: 26–27 cm LLL: 27–28 cm 4L: 28–30 cm If you are between sizes, choose the larger size. ⸻ International Edition Includes • Pre-threaded Sanada straps • Enhanced grip rubber soles • Original branding engraving • Two replacement sole sets • One extra pair of replacement Sanada straps • Exclusive instructional video • English manual and support ⸻ Production & Shipping Each pair is handcrafted to order in Japan. Orders are usually prepared and shipped within approximately 20 days. International delivery times vary depending on destination and customs processing. ⸻ Important This product requires balance and coordination. Begin near a wall or stable support. Use on flat, safe surfaces until fully accustomed. Use at your own responsibility. Commercial instruction requires certification from TENARI Co., Ltd. ⸻ Move with gravity.
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ippon blade 369 (miroku) / BYAKKO
¥47,800($291.58)
⚠️ Import Duties Notice Import duties, VAT, and customs fees are NOT included. These charges are determined by your country and must be paid by the recipient. If unpaid, the package may be held or returned. ⸻ ippon blade™ 369 (MIROKU) High-Rise Model Best for advanced users. Designed using the Fibonacci Golden Ratio. 369 (MIROKU) is the most challenging model in the ippon blade™ lineup. Its higher structure requires greater balance and body control, making it ideal for dynamic movement, running, martial arts, dance, and advanced balance training. Recommended for experienced users seeking maximum challenge and movement awareness. ⸻ Why Choose 369 (MIROKU)? • Advanced balance training • Greater center-of-mass control • Improved coordination and movement precision • Increased body awareness • Suitable for running, martial arts, dance, and athletic training Because of its height, this model carries a greater risk of falling than 1000 (ZEN). Please begin slowly and allow your body to adapt gradually. ⸻ Color Concept Each color represents a concept, not a difference in performance. Choose the one that resonates with you. BYAKKO (White) Inspired by Byakko, the White Tiger of the West. A symbol of clarity, precision, discipline, and controlled power. ⸻ Materials Hanao (Strap) Traditional Sanada Himo Platform Japanese Paulownia Wood Tooth Japanese Magnolia Wood Handcrafted in Japan. ⸻ Size Guide Measure your bare foot length from heel to longest toe. S: 21–23 cm SM: 23–24 cm M: 24–25 cm L: 25–26 cm LL: 26–27 cm LLL: 27–28 cm 4L: 28–30 cm If you are between sizes, choose the larger size. ⸻ International Edition Includes • Pre-threaded Sanada straps • Enhanced grip rubber soles • Original branding engraving • Two replacement sole sets • One extra pair of replacement Sanada straps • Exclusive instructional video • English manual and support ⸻ Production & Shipping Each pair is handcrafted to order in Japan. Orders are usually prepared and shipped within approximately 20 days. International delivery times vary depending on destination and customs processing. ⸻ Important This product requires balance and coordination. Begin near a wall or stable support. Use on flat, safe surfaces until fully accustomed. Use at your own responsibility. Commercial instruction requires certification from TENARI Co., Ltd. ⸻ Move with gravity.
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ippon blade 369 (miroku) / SUZAKU
¥47,800($291.58)
⚠️ Import Duties Notice Import duties, VAT, and customs fees are NOT included. These charges are determined by your country and must be paid by the recipient. If unpaid, the package may be held or returned. ⸻ ippon blade™ 369 (MIROKU) High-Rise Model Best for advanced users. Designed using the Fibonacci Golden Ratio. 369 (MIROKU) is the most challenging model in the ippon blade™ lineup. Its higher structure requires greater balance and body control, making it ideal for dynamic movement, running, martial arts, dance, and advanced balance training. Recommended for experienced users seeking maximum challenge and movement awareness. ⸻ Why Choose 369 (MIROKU)? • Advanced balance training • Greater center-of-mass control • Improved coordination and movement precision • Increased body awareness • Suitable for running, martial arts, dance, and athletic training Because of its height, this model carries a greater risk of falling than 1000 (ZEN). Please begin slowly and allow your body to adapt gradually. ⸻ Color Concept Each color represents a concept, not a difference in performance. Choose the one that resonates with you. SUZAKU (Red) Inspired by Suzaku, the Vermilion Bird of the South. A symbol of passion, vitality, speed, and dynamic movement. ⸻ Materials Hanao (Strap) Traditional Sanada Himo Platform Japanese Paulownia Wood Tooth Japanese Magnolia Wood Handcrafted in Japan. ⸻ Size Guide Measure your bare foot length from heel to longest toe. S: 21–23 cm SM: 23–24 cm M: 24–25 cm L: 25–26 cm LL: 26–27 cm LLL: 27–28 cm 4L: 28–30 cm If you are between sizes, choose the larger size. ⸻ International Edition Includes • Pre-threaded Sanada straps • Enhanced grip rubber soles • Original branding engraving • Two replacement sole sets • One extra pair of replacement Sanada straps • Exclusive instructional video • English manual and support ⸻ Production & Shipping Each pair is handcrafted to order in Japan. Orders are usually prepared and shipped within approximately 20 days. International delivery times vary depending on destination and customs processing. ⸻ Important This product requires balance and coordination. Begin near a wall or stable support. Use on flat, safe surfaces until fully accustomed. Use at your own responsibility. Commercial instruction requires certification from TENARI Co., Ltd. ⸻ Move with gravity.
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ippon blade 369 (miroku) / GENBU
¥47,800($291.58)
⚠️ Import Duties Notice Import duties, VAT, and customs fees are NOT included. These charges are determined by your country and must be paid by the recipient. If unpaid, the package may be held or returned. ⸻ ippon blade™ 369 (MIROKU) High-Rise Model Best for advanced users. Designed using the Fibonacci Golden Ratio. 369 (MIROKU) is the most challenging model in the ippon blade™ lineup. Its higher structure requires greater balance and body control, making it ideal for dynamic movement, running, martial arts, dance, and advanced balance training. Recommended for experienced users seeking maximum challenge and movement awareness. ⸻ Why Choose 369 (MIROKU)? • Advanced balance training • Greater center-of-mass control • Improved coordination and movement precision • Increased body awareness • Suitable for running, martial arts, dance, and athletic training Because of its height, this model carries a greater risk of falling than 1000 (ZEN). Please begin slowly and allow your body to adapt gradually. ⸻ Color Concept Each color represents a concept, not a difference in performance. Choose the one that resonates with you. GENBU (Green) Inspired by Genbu, the Black Tortoise of the North. A symbol of stability, endurance, resilience, and grounded strength. Designed for those who value steady progress, calm focus, and sustainable movement. ⸻ Materials Hanao (Strap) Traditional Sanada Himo Platform Japanese Paulownia Wood Tooth Japanese Magnolia Wood Handcrafted in Japan. ⸻ Size Guide Measure your bare foot length from heel to longest toe. S: 21–23 cm SM: 23–24 cm M: 24–25 cm L: 25–26 cm LL: 26–27 cm LLL: 27–28 cm 4L: 28–30 cm If you are between sizes, choose the larger size. ⸻ International Edition Includes • Pre-threaded Sanada straps • Enhanced grip rubber soles • Original branding engraving • Two replacement sole sets • One extra pair of replacement Sanada straps • Exclusive instructional video • English manual and support ⸻ Production & Shipping Each pair is handcrafted to order in Japan. Orders are usually prepared and shipped within approximately 20 days. International delivery times vary depending on destination and customs processing. ⸻ Important This product requires balance and coordination. Begin near a wall or stable support. Use on flat, safe surfaces until fully accustomed. Use at your own responsibility. Commercial instruction requires certification from TENARI Co., Ltd. ⸻ Move with gravity.
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ippon blade 1000 (zen) / SEIRYU
¥47,800($291.58)
⚠️ Import Duties Notice Import duties, VAT, and customs fees are NOT included. These charges are determined by your country and must be paid by the recipient. If unpaid, the package may be held or returned. ⸻ ippon blade™ 1000 (ZEN) Low-Rise Model Best for beginners. Designed using the traditional Japanese Yamato Ratio. 1000 (ZEN) is the most accessible model in the ippon blade™ lineup. Its lower height provides greater stability while still offering the unique balance experience of traditional single-tooth footwear. Recommended for daily walking, posture practice, mindful movement, travel, and first-time users. ⸻ Why Choose 1000 (ZEN)? • Beginner-friendly design • Greater stability and confidence • Improved posture and body awareness • Encourages smooth, natural movement • Suitable for walking, travel, standing practice, and daily use Compared to 369 (MIROKU), this model offers a lower risk of falling and is easier to use in a wider variety of environments. ⸻ Color Concept Each color represents a concept, not a difference in performance. Choose the one that resonates with you. SEIRYU (Blue) Inspired by Seiryu, the Blue Dragon of the East. A symbol of flow, harmony, adaptability, and effortless movement. ⸻ Materials Hanao (Strap) Traditional Sanada Himo Platform Japanese Paulownia Wood Tooth Japanese Magnolia Wood Handcrafted in Japan. ⸻ Size Guide Measure your bare foot length from heel to longest toe. S: Up to 23.5 cm M: 23.5–25.0 cm L: 25.0–26.0 cm LL: 26.0–27.0 cm LLL: 27.0–28.5 cm 4L: 28.5–30.0 cm If you are between sizes, choose the larger size. ⸻ International Edition Includes • Pre-threaded Sanada straps • Enhanced grip rubber soles • Original branding engraving • Two replacement sole sets • One extra pair of replacement Sanada straps • Exclusive instructional video • English manual and support ⸻ Production & Shipping Each pair is handcrafted to order in Japan. Orders are usually prepared and shipped within approximately 20 days. International delivery times vary depending on destination and customs processing. ⸻ Important This product requires balance and coordination. Begin near a wall or stable support. Use on flat, safe surfaces until fully accustomed. Use at your own responsibility. Commercial instruction requires certification from TENARI Co., Ltd. ⸻ Move with gravity.
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ippon blade 1000 (zen) / BYAKKO
¥47,800($291.58)
⚠️ Import Duties Notice Import duties, VAT, and customs fees are NOT included. These charges are determined by your country and must be paid by the recipient. If unpaid, the package may be held or returned. ⸻ ippon blade™ 1000 (ZEN) Low-Rise Model Best for beginners. Designed using the traditional Japanese Yamato Ratio. 1000 (ZEN) is the most accessible model in the ippon blade™ lineup. Its lower height provides greater stability while still offering the unique balance experience of traditional single-tooth footwear. Recommended for daily walking, posture practice, mindful movement, travel, and first-time users. ⸻ Why Choose 1000 (ZEN)? • Beginner-friendly design • Greater stability and confidence • Improved posture and body awareness • Encourages smooth, natural movement • Suitable for walking, travel, standing practice, and daily use Compared to 369 (MIROKU), this model offers a lower risk of falling and is easier to use in a wider variety of environments. ⸻ Color Concept Each color represents a concept, not a difference in performance. Choose the one that resonates with you. BYAKKO (White) Inspired by Byakko, the White Tiger of the West. A symbol of clarity, precision, discipline, and controlled strength. Designed for those who value refined movement, calm confidence, and balanced power. ⸻ Materials Hanao (Strap) Traditional Sanada Himo Platform Japanese Paulownia Wood Tooth Japanese Magnolia Wood Handcrafted in Japan. ⸻ Size Guide Measure your bare foot length from heel to longest toe. S: Up to 23.5 cm M: 23.5–25.0 cm L: 25.0–26.0 cm LL: 26.0–27.0 cm LLL: 27.0–28.5 cm 4L: 28.5–30.0 cm If you are between sizes, choose the larger size. ⸻ International Edition Includes • Pre-threaded Sanada straps • Enhanced grip rubber soles • Original branding engraving • Two replacement sole sets • One extra pair of replacement Sanada straps • Exclusive instructional video • English manual and support ⸻ Production & Shipping Each pair is handcrafted to order in Japan. Orders are usually prepared and shipped within approximately 20 days. International delivery times vary depending on destination and customs processing. ⸻ Important This product requires balance and coordination. Begin near a wall or stable support. Use on flat, safe surfaces until fully accustomed. Use at your own responsibility. Commercial instruction requires certification from TENARI Co., Ltd. ⸻ Move with gravity.
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ippon blade 1000 (zen) / SUZAKU
¥47,800($291.58)
⚠️ Import Duties Notice Import duties, VAT, and customs fees are NOT included. These charges are determined by your country and must be paid by the recipient. If unpaid, the package may be held or returned. ⸻ ippon blade™ 1000 (ZEN) Low-Rise Model Best for beginners. Designed using the traditional Japanese Yamato Ratio. 1000 (ZEN) is the most accessible model in the ippon blade™ lineup. Its lower height provides greater stability while still offering the unique balance experience of traditional single-tooth footwear. Recommended for daily walking, posture practice, mindful movement, travel, and first-time users. ⸻ Why Choose 1000 (ZEN)? • Beginner-friendly design • Greater stability and confidence • Improved posture and body awareness • Encourages smooth, natural movement • Suitable for walking, travel, standing practice, and daily use Compared to 369 (MIROKU), this model offers a lower risk of falling and is easier to use in a wider variety of environments. ⸻ Color Concept Each color represents a concept, not a difference in performance. Choose the one that resonates with you. SUZAKU (Red) Inspired by Suzaku, the Vermilion Bird of the South. A symbol of vitality, warmth, passion, and life force. Designed for those who seek energetic movement, positive momentum, and an active lifestyle. ⸻ Materials Hanao (Strap) Traditional Sanada Himo Platform Japanese Paulownia Wood Tooth Japanese Magnolia Wood Handcrafted in Japan. ⸻ Size Guide Measure your bare foot length from heel to longest toe. S: Up to 23.5 cm M: 23.5–25.0 cm L: 25.0–26.0 cm LL: 26.0–27.0 cm LLL: 27.0–28.5 cm 4L: 28.5–30.0 cm If you are between sizes, choose the larger size. ⸻ International Edition Includes • Pre-threaded Sanada straps • Enhanced grip rubber soles • Original branding engraving • Two replacement sole sets • One extra pair of replacement Sanada straps • Exclusive instructional video • English manual and support ⸻ Production & Shipping Each pair is handcrafted to order in Japan. Orders are usually prepared and shipped within approximately 20 days. International delivery times vary depending on destination and customs processing. ⸻ Important This product requires balance and coordination. Begin near a wall or stable support. Use on flat, safe surfaces until fully accustomed. Use at your own responsibility. Commercial instruction requires certification from TENARI Co., Ltd. ⸻ Move with gravity.
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ippon blade 1000 (zen) / GENBU
¥47,800($291.58)
⚠️ Import Duties Notice Import duties, VAT, and customs fees are NOT included. These charges are determined by your country and must be paid by the recipient. If unpaid, the package may be held or returned. ⸻ ippon blade™ 1000 (ZEN) Low-Rise Model Best for beginners. Designed using the traditional Japanese Yamato Ratio. 1000 (ZEN) is the most accessible model in the ippon blade™ lineup. Its lower height provides greater stability while still offering the unique balance experience of traditional single-tooth footwear. Recommended for daily walking, posture practice, mindful movement, travel, and first-time users. ⸻ Why Choose 1000 (ZEN)? • Beginner-friendly design • Greater stability and confidence • Improved posture and body awareness • Encourages smooth, natural movement • Suitable for walking, travel, standing practice, and daily use Compared to 369 (MIROKU), this model offers a lower risk of falling and is easier to use in a wider variety of environments. ⸻ Color Concept Each color represents a concept, not a difference in performance. Choose the one that resonates with you. GENBU (Green) Inspired by Genbu, the Black Tortoise of the North. A symbol of stability, endurance, resilience, and grounded strength. Designed for those who value consistency, patience, and long-term growth. ⸻ Materials Hanao (Strap) Traditional Sanada Himo Platform Japanese Paulownia Wood Tooth Japanese Magnolia Wood Handcrafted in Japan. ⸻ Size Guide Measure your bare foot length from heel to longest toe. S: Up to 23.5 cm M: 23.5–25.0 cm L: 25.0–26.0 cm LL: 26.0–27.0 cm LLL: 27.0–28.5 cm 4L: 28.5–30.0 cm If you are between sizes, choose the larger size. ⸻ International Edition Includes • Pre-threaded Sanada straps • Enhanced grip rubber soles • Original branding engraving • Two replacement sole sets • One extra pair of replacement Sanada straps • Exclusive instructional video • English manual and support ⸻ Production & Shipping Each pair is handcrafted to order in Japan. Orders are usually prepared and shipped within approximately 20 days. International delivery times vary depending on destination and customs processing. ⸻ Important This product requires balance and coordination. Begin near a wall or stable support. Use on flat, safe surfaces until fully accustomed. Use at your own responsibility. Commercial instruction requires certification from TENARI Co., Ltd. ⸻ Move with gravity.
The Story Behind ippon blade™
ippon blade™ was created by Ten Kodaira after more than a decade of exploring human movement through barefoot running, endurance challenges, and traditional Japanese movement culture.
Inspired by traditional Japanese single-tooth geta, he asked a simple question:
"What if a single point of contact could help people rediscover balance, posture, and natural movement?"
That question became the foundation of ippon blade™.
To transform this idea into reality, Ten partnered with Japanese craftsman Moku-en, whose expertise in traditional woodworking helped shape each detail of the design.
Together, they created a handcrafted movement tool that combines real-world experience, traditional craftsmanship, and modern understanding of human movement.
One milestone in this journey was Ten's completion of a 100 km ultramarathon wearing traditional single-tooth geta, demonstrating the practical potential of this approach under extreme conditions.
ippon blade™ is not designed to force a technique.
Its purpose is to help people reconnect with balance, awareness, and natural movement through direct experience.
Handcrafted in Japan.
Developed through experience.
Made to move with gravity.
