MTNG Free Aira Women's Barefoot Trainers Beige/Orange
£78.1
£62.4
£51.6 without VAT
-20%
Discount £15.6
FREE delivery from 79 €
Quick delivery
Description and parameters
White women's barefoot trainers Mustang Free Aria in retro sports style with details in beige, lilac and light yellow. The design combines two-coloured laces, layered panels, side logo and a beige-toned sole.
This model was specially designed and developed in collaboration with Dr. Juanjo López, a sports traumatologist, with the aim of respecting the natural development of the foot. These minimalist shoes improve foot anatomy and support better foot positioning thanks to their wide toe box, completely flat sole (zero drop) and flexibility.
Fit
- spacious anatomically shaped toe box
- fits medium to wider feet
- suitable for dominant big toe
- fits medium to wider heels
- suitable for medium to high insteps

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Features
- white upper with beige, lilac and light yellow details
- retro sports design
- two-coloured laces and layered panels
- wide, anatomically shaped toe box
- completely flat sole with zero drop
- flexible sole supporting natural foot anatomy
- developed in collaboration with Dr. Juanjo López, sports traumatologist
- transitional insole for gradual transition from conventional to minimalist footwear
- thermal insoles with zero drop to keep feet warm in cold weather
- PETA® Vegan certified
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Size Guide
How to Choose the Right Size
Measure your foot and add 5-10 mm allowance.
| Free Apolo Aria Size Guide |
| EU Size |
Internal Length (mm) |
Internal Width (mm) |
| 37 |
240 |
88 |
| 38 |
245 |
89 |
| 39 |
250 |
91 |
| 40 |
260 |
92 |
| 41 |
265 |
94 |
| 42 |
275 |
95 |
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Material
Quality materials certified as vegan.
- upper: textile and synthetic materials
- sole: flexible, with zero drop
- insoles: transitional insole and thermal insole with zero drop
- PETA® Vegan certified - the main chemical composition of the material does not correspond to fibres of animal origin
How to Care for Your Shoes
- always remove coarse dirt first with a brush
- wipe shoes with a damp cloth and dry
- do not wash or dry directly near heat sources
- to increase durability, regularly treat shoes with waterproofing spray
- with proper care, the leather will last a long time
- colourless leather balm will extend the life and improve the appearance
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What You Might Want to Know About Free Aria
- What is the transitional insole for?
The transitional insole allows for a more gradual transition if you're coming from conventional footwear to minimalist barefoot shoes.
- What are thermal insoles with zero drop?
These are insoles designed to keep your feet warm in cold weather while maintaining zero drop for the full barefoot experience even in winter.
- Are they suitable for all-day wear?
Yes, thanks to the flexible sole, wide toe box and retro sports design, they're ideal for casual all-day wear.
- What size should I choose?
We recommend choosing your usual size, but to be sure, check the Free Aria size guide where you'll find precise measurements including internal length and width.
- Are the trainers vegan?
Yes, the model is certified as vegan by PETA®, which guarantees that the main chemical composition of the material does not correspond to fibres of animal origin.

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Parameters
| Fastening |
Laces |
| Instep height |
Low, Medium |
| Ankle shape |
Medium, Narrow |
| Foot width |
Medium Wide, Medium, Wide |
| Season |
Spring, Summer, Autumn |
| Usage |
City |
| Upper |
Textile |
| Lining and Insole |
Textile |
| Season |
Spring, Summer, Autumn |
| Gender |
Women's |
| Colors |
Beige, White |
| Barefoot |
yes |
Not sure about size? Measure your foot online
All you need is an A4 sheet and your phone - in two minutes you'll know the exact length and width of your foot.
Size Guide
How to Choose the Right Size
Measure your foot and add 5-10 mm allowance.
| Free Apolo Aria Size Guide |
| EU Size |
Internal Length (mm) |
Internal Width (mm) |
| 37 |
240 |
88 |
| 38 |
245 |
89 |
| 39 |
250 |
91 |
| 40 |
260 |
92 |
| 41 |
265 |
94 |
| 42 |
275 |
95 |
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