EQUINOX Fit — Indoor Barefoot Trainer
EQUINOX Fit — Indoor Barefoot Trainer
In stock
Size Guide — EU & US Sizing
Size Guide
EQUINOX shoes are sized in EU. Use the guide below to find your perfect fit.
How to Measure Your Foot
- Place a piece of paper on a hard floor (not carpet — carpet compresses under your foot and gives a false reading).
- Stand on the paper with your full weight. Your foot spreads under load, so always measure standing, not sitting.
- Mark the back of your heel where it touches the paper.
- Mark the tip of your longest toe. This may be your second toe, not your big toe — check both.
- Measure the distance in centimetres between the two marks.
- If your feet differ in size (very common), use the measurement of the larger foot.
- Add 0.5–1 cm for toe clearance. This is your target internal shoe length.
Size Chart
| EU | US Men | US Women | UK | Foot length (cm) |
|---|---|---|---|---|
| 36 | 4 | 5.5 | 3 | 22.5–23.0 |
| 37 | 5 | 6.5 | 4 | 23.0–23.8 |
| 38 | 6 | 7.5 | 5 | 23.8–24.5 |
| 39 | 7 | 8.5 | 6 | 24.5–25.3 |
| 40 | 8 | 9.5 | 7 | 25.3–26.0 |
| 41 | 8.5 | 10 | 7.5 | 26.0–26.8 |
| 42 | 9.5 | 11 | 8.5 | 26.8–27.5 |
| 43 | 10 | 11.5 | 9 | 27.5–28.3 |
| 44 | 11 | 12.5 | 10 | 28.3–29.0 |
| 45 | 11.5 | 13 | 10.5 | 29.0–29.8 |
When In Doubt, Size Up
If your foot measurement puts you between two sizes, always choose the larger size. In a wide-toe-box barefoot shoe, a slightly longer fit is better than a slightly shorter one — your toes need room to splay and spread naturally. A shoe that is 0.5 cm too long is comfortable. A shoe that is 0.5 cm too short is not.
Width
EQUINOX shoes are built on an anatomical last — they are wider than conventional shoes by design. If you have particularly wide feet, you will likely find this more comfortable than any conventional shoe you have worn. If your feet have been compressed by narrow shoes for years, your toes may need a few weeks to decompress and spread into the available space. This is normal and expected.
Five-Toe Models (Aqua Five and Trail Aqua)
The Aqua Five and Trail Aqua have five individual toe pockets. Sizing works the same way — measure your foot length and match to the chart above. The toe pockets are designed to accommodate the natural range of toe lengths. If you have unusually long second or third toes, size up one.
Still Not Sure?
Email us at equinox@ozgunmak.com with your foot measurement in cm and we will recommend the right size for you before you order. We reply within 24 hours.
All EQUINOX orders come with free worldwide shipping and a 30-day risk-free return policy — so if the size isn't right, we'll sort it out.
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💪 Train harder — 26 bones, 33 joints finally working as designed
🦶 200,000 nerve endings sending real ground data
🔄 30-day returns, no questions
🚚 Free worldwide shipping — every order, always
Shipping & Returns
Shipping & Returns
Most gym shoes do too much work for your feet. EQUINOX Fit gets out of the way and lets your foot do the work it was built for.
Zero heel elevation keeps your weight distributed naturally through lifts, squats and functional movement. The anatomical wide toe box lets your toes splay for balance during yoga, pilates and floor work. A thin flexible sole gives you real ground feedback on every surface. No thick cushioning turning off the proprioception you need to train well.
Why your training shoe might be hurting your training
Raised heels tilt your pelvis forward and shift stress to your knees and lower back during every lift. Narrow toe boxes prevent the toe splay that stabilises you in single-leg movements. Thick cushioning muffles the ground feedback that tells your nervous system how to fire. EQUINOX Fit removes all three problems at once.
Key features
- Zero-drop flat sole — natural weight distribution for lifting and training
- Anatomical wide toe box — toe splay for balance and stability
- Thin flexible outsole — maximum ground feedback and proprioception
- Breathable ventilated upper — designed for intense sessions
- Unisex sizing — EU 36–45
Perfect for
Weight training · Yoga · Pilates · HIIT · CrossFit · Home workouts · Everyday gym use
Sole durability
The EQUINOX Fit outsole is a gym-grade rubber compound — optimised for grip on rubber flooring, wooden floors and yoga mats. The compound is harder than our water shoes (less wear on abrasive surfaces) and softer than our street soles (more grip on smooth gym flooring). Under regular training use: 600–1,000 km, depending on surface. Rubber gym floors transfer residue onto outsoles with each session; wipe clean regularly to prevent compound degradation. The flat zero-drop sole wears evenly across the full footbed under load.
Care note: wipe clean with a damp cloth after each session. Air dry naturally. Do not machine wash — high-temperature cycles degrade the rubber-to-upper bond.
Free worldwide shipping · 30-day risk-free returns
THE PROBLEM
Your training shoe is sabotaging your training
Every raised heel tilts your pelvis forward. Every narrow toe box prevents the toe splay that stabilises you. Every thick sole muffles 200,000 nerve endings.
THE SOLUTION
The training shoe that trains your feet
EQUINOX Fit removes every obstacle. Zero-drop. Wide toe box. Flexible sole for genuine ground feel.
THE SCIENCE
200,000 nerve endings — most shoes block all of them
26 bones, 33 joints, 200,000 nerve endings designed to read the ground. EQUINOX restores the signal.
THE TRANSFORMATION
Week by week, your body recalibrates
Days 1–7: Foot muscles activate.
Weeks 2–4: Stronger arches, better stability.
Month 2+: 94% say they’ll never go back.
See the difference
Conventional training shoes block your nerve endings and tilt your spine. EQUINOX removes every obstacle.
Sole Durability
The EQUINOX Fit outsole is a gym-grade rubber compound optimised for grip on rubber flooring, wooden floors and yoga mats.
Common questions, honest answers.
What are foot-shaped shoes?
What are foot-shaped shoes?
Foot-shaped shoes have three core features: a wide toe box, zero drop, and a flexible sole.
How do I find the right size?
How do I find the right size?
Measure your foot in cm, add 0.5–1 cm. When in doubt, size up.
Will my feet hurt at first?
Will my feet hurt at first?
Possibly — normal. Start with 1–2 hours the first day.
How do shipping and returns work?
How do shipping and returns work?
Shipping: Free worldwide.
Returns: 30 days, any reason.
What our customers say
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Oliver K.
Super lightweight yet durable. Truly versatile and comfortable.
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Lamin K.
EQUINOX is a game-changer. Comfort is unmatched, my back pain has improved.
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Machie B.
My toes have room to spread. That small detail makes a huge difference.
