y Genki-kunTM Toe Stretcher, Toe Training, Prevent Bunions
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Helps relieve: Stress on your Feet,
Relieve Pains from Bunions, Hammer Toe Deformities, Varicose Vein, and Inflammation
Reduce Athlete' Foot, Children's Foot Disorders such as Bunions at the Early Stage

Improves your blood circulation, body flexibility and strengthening by stretching toes

GENKI-KUN Toe Stretcher

Product recognized as the first Toe Stretcher in the world
Sold more than one million pairs in Japan
Used by professional athletes, actors, and models
Wearing figure
* * Click here for more info * *
Benefits] Dr.Hiro
Recommended for
How to wear
About Toe Stretching
For Ballet


Genki-kun Toe-stretcher helps you:

  • Relieve stress on your feet
  • Improve the circulation in legs and feet
  • Make joints and ankles flexible
  • Prevent athlete's foot
  • Stretche Achilles' tendons
  • Increase foot strength
  • Prevent bunions, bunionettes, hammer toes
  • Those who wear shoes all day long
  • Those who wear shoes all day long
  • Those who want to strengthen feet, improve flexibility and blood circulation
  • Those who want to prevent bunions or hammer toes, etc.
  • Those in hospital bed who need exercise
  • Athletes for foot stretching and strengthening

How to Wear

how to wear
  1. Spread your toes.
  2. Place each toe into Genki-kunTM Toe Stretcher.
  3. Push it firmly to the base of your toes.
  4. Remove Genki-kun Toe Stretcher, if you experience pain. Massage your toes thoroughly and try again.



Please choose the one that fits you.
(This is a rough chart based on both men's and women's shoe sizes combined.)
Small Medium Large
Japanese 20.5-24 23.5-27 26.5-29.5
English 1.5-5 4.5-8.5 8-11
European 33.5-38 37.5-42.5 42-46
American 4-7.5 7-9 8.5-11.5


  • Soft-type: It is made like the softness of the relaxed muscles. (Recommended for beginners.)
  • Hard-type: It is made firm as if you pull your muscles.


Color variation
Wearing figure


  • Polyethylene foam and its cover layer specially embossed for well-ventilation and not absorbing moisture
  • The close feel to human muscles or skin
  • Waterproof


  • Do not force yourself when you feel sick or pain wearing it.
  • Wear on both feet for proper body balancing.
  • Do not wear too long, especially in the beginning stage, before you get used to it.
  • Select the right size and hardness for best results.
  • Be cautious when walking wearing Genki-kun on the floor which may be slippery.
  • Do not use Genki-kun toe stretcher for other purposes other than toe stretching.
  • Keep it clean with regular washing. Do not use hot water when washing.
  • Keep away from fire.

About Toe Stretching

Do you care your toes as the same way you care your fingers?
Not many people answers YES! After all, there are 5 toes just as there are 5 fingers, and it is necessary for toes to be able to spread out like fingers.
* 1. Spread the big toe only. (Fig. A) Fig. A

Fig. B

Fig. C

Fig. D
This leads to make only the big toe flexible whereas the other four don't get flexible at all. To make it even worse, the little toe may lead to become into a bad shape due to imbalanced exercise. However, if you have a bad bunion, spreading the big toe gives you a temporary relief. This is ok for a short period of time, but you should consider the toe balance with the little toe if you do this as a long-term exercise.
* 2. Spread both big and little toes. (Fig. B)
This will lead to much better results than only spreading the big toe. Normally those with the bunion (a big toe joint deformity) tend to have the bunionette (little toe joint deformity) as well. So as a temporarily relief of bunion and bunionette, you can spread the big and little toes at the same time.
For more toe deformity, click also
Genki-kunTM One-Step

** 3. Spread all 5 toes. (Fig. C)
It is ideal to spread and stretch all 5 toes, and you can expect the ultimate balance of toes from this exercise.
*** Fig. D shows the important part where flexibility is required the most for us.
It is necessary for us to make the muscles in the blackened area (in the picture) flexible.
1 Toe-Spreading Exercise (Fig. E) Fig. E
Fig. F

Fig. G
Fig. H
Fig. I
Fig. J

Fig. K
  • Helps lead you to easily spread and close your toes and vice versa, and makes unused muscles flexible
  • Helps prevent the athlete's foot
  • Helps prevent bunions & relieve discomfort from them
2 Pushing Exercise (Fig. F)
(Press the floor with your toes wearing Genki-kunTM Toe Stretcher)
  • Helps improve the circulation in legs and feet by stimulating toes
  • Helps prevent varicose veins
  • Helps revitalize your nails
3 Walking Exercises
Stretch the Achilles' tendon
  • Makes the ankles flexible
Correction of Walking
  • Helps make you redistribute your weight to the big toe side since wearing Genki-kunTM Toe Stretcher doesn't allow you to walk with your weighing onto your little toe side (Putting the gravity center to the big toe side is the basics correct walking.)
Using Stretch Belt (400yen) (Fig. G)
  • to Avoid Genki-kunTM Toe Stretcher from taking off
4 Gripping each toe (Fig. H)
  • Helps prevent hammer toe
  • Helps strengthen your toes (as the same effect you can get from wearing Japanese clogs, geta)
5 Rotating Exercise (Fig. I)
  • Helps make your toes flexible by rotating toes in circular motion putting Genki-kunTM Toe Stretcher on your toes holding with your hand
6 Massage (Fig. J)
  • Helps improves your foot skin by moving toes wearing Genki-kunTM Toe Stretcher
    *After using Genki-kunTM Toe Stretcher, you might get white crud on each toe.
7 Foot Bath (Fig. K)
  • Helps improves the circulation in legs and feet by foot bath or regular bath wearing Genki-kunTM Toe Stretcher

For Ballet

For Ballet
Genki-kunTM Toe Stretcher is also used in a ballet lesson.
Kobayashi Naomi

For foot care before and after ballet lessons by Naomi Kobayashi Naomi (ballet instructor)

"I didn't know that it can improve the body flexibility this much. It makes toe nails pretty and the whole body beautiful."
<<A ballet instructor working out in a gym in New York>>
NAOMI'S LESSON STUDIO (ballet lesson)(This site is in Japanese.)

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