Aion Shoes
Aion Trainer Rosea
Aion Trainer Rosea
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All Sizes are Unisex
True to Size
Sole Thickness
Sole Thickness
Strength in every millimeter. Featuring a 4mm resilient rubber build that balances sleek design with lasting performance.
Size Chart
Size Chart
| EU Size | US Men’s | US Women’s | Foot Length (cm) |
|---|---|---|---|
| 36 | 4 | 6 | 24.0 |
| 37 | 5 | 7 | 24.6 |
| 38 | 6 | 7.5 | 25.3 |
| 39 | 6.5 | 8 | 26.0 |
| 40 | 7 | 9 | 26.6 |
| 41 | 8 | 10 | 27.3 |
| 42 | 9 | 11 | 28.0 |
| 43 | 10 | 11.5 | 28.6 |
| 44 | 11 | 12 | 29.3 |
| 45 | 12 | 13 | 30.0 |
| 46 | 12.5 | 13.5 | 30.6 |
| 47 | 13 | 14 | 31.3 |
Size Recommendation
Size Recommendation
Half Sizes?
Half Sizes?
Only if you are on a half size, size down
Example normal size 10.5, size with us 10
Weight
Weight
7-12 oz (each shoe) Depending on size
Return Policy
Return Policy
Shop with confidence: Return within 30 days in original condition.
Shipping
Shipping
Efficient Shipping: All Orders Ship Next Day!
Free on all orders
We ship anywhere in the USA
3-8 working days from dispatch via tracked service with USPS
Built for athletes who demand more from their barefoot shoes. With a 4mm, this versatile laced trainer is designed for all types of training—whether you're sprinting, lifting, jumping, or moving through your day.
Engineered with a breathable, seamless flyknit upper and reinforced stitching from top to sole, it's made to handle serious wear. We added double-reinforced support at the toe box and heel to maximize durability exactly where you need it most.
Over two years of development and real-world testing went into this shoe—and it shows. It’s the strongest, most functional barefoot shoe on the market. Zero drop, wide toe box, full ground feel, and built to last.
Let customers speak for us
I have been wearing my trainers everyday now for almost a month and wow, this is an amazing shoe. It did take me about a week to break in in regards to the flexibility around the toe box when doing things like calf raises or a plank but-the overall shoe was immediately comfortable. It’s a very diverse trainer with good tread and that’s easy to lace. I work as a massage therapist And they’ve been great to wear while I’m working, working out and now they’re also my favorite travel shoe! 10/10 recommend getting a pair for your self
This is hands down the most comfortable workout shoe I've worn. They've exceeded my expectations!
10/10 Highly Recommend
Great fit, amazing quality, and they look slick. If you're on the fence, just get them—you won't regret it. Aion is killing it!
My experience with these shoes are amazing. My knee joints feel so much better. I will definitely order some more. These shoes are so cute.
Im blown away by these shoes! I have been wearing them for leg day and feel a major difference in my foot posture! I feel more stable in all my lifts and love to wear them with my sweats or shorts. Definitely need another pair asap
Best shoes to every touch my feet!! Not only will I be buying more but my friends and family are joining the Aion Shoes Gang fam!! Thank You for your hard work creating an amazing shoe’s!!
I absolutely love my shoes. The feel, the fit and the look are amazing. Recently had some very long travel days and these shoes were an absolute life saver. I normally just wear slides or my Birkenstocks through the airport because shoes always feel so suffocating and restrictive to me but these are different. They’re so light weight, breathable, and the wide toe box has my feet feeling amazing. After wearing these consistently I can feel my feet getting stronger too. Great looking shoe that is also doing wonders for my feet.
I love these shoes, I want them in every color. They are super lightweight and make me feel like I want to run for miles. They don't even look like a barefoot shoe, but there's no mistaking it if you try to squeeze your foot in a basic tennis shoe after wearing Aions. They're the best barefoot shoe on the market, and the pink is perfect, I've gotten so many compliments. Do yourself a favor and invest in a pair.
I’m a tennis shoe girly and usually wear adidas spezial but I’ve been trying to focus on my feet health and thought I would give these a try. I’m very pleased how they look on and they are si comfortable. Love!
Absolutely love these, I use them for boxing all the time. Swapped in some white laces and they pop even more. Honestly, Aion is all I wear now, and my feet couldn’t be happier.
Loved my first pair of trainers so much, so invested in a second just to add some more style to my fitness routine..! But to be honest my newest addition has made more appearances around town then the gym, given they’re an absolute vibe… 🕶️! I’ve gotten so many compliments.
So this was my second pair of Aions, my first with laces and I couldn’t be more pleased with my newest addition. Super comfy, functional, stabilizing and also supportive for my gym day + cardio…! These trainers 👟 rock..!
So comfortable! My new go to dress casual shoe! Can be on my feet all day, and the best for travel!