




Our models typically wear US Size 2-4 or Australian Size 6-8, X-Small, Small, or One-Size garments.
On each product page, we provide the model's measurements and what size she is wearing to help guide you.
You can refer to the charts when selecting sizes but please note that sizes cannot be guaranteed and might vary slightly between brands.
If you need any advice about sizing, please feel free to drop us a line at: service@sunnoss.com
The measurements in the description of individual products are taken only across the front side of the garment, not around the circumference (e.g. chest and waist).
If you can't find a completely satisfactory size in our size chart, don't worry! Feel free to contact us anytime at service@irispetal.com or through our online customer service. Our team is more than happy to provide personalized advice, recommend alternative styles, or assist with customization needs. Your comfort is our top priority!
Free Shipping on Orders Over $50 !
Fast, free shipping—style delivered with ease !
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Enjoy an extremely long return period during the event !
Our 24/7 customer care team is here to deliver thoughtful support !
The Primus Lite III is our most versatile training Vivo, made for moving naturally and growing strong through wide-ranging training disciplines. It’s perfect for experienced barefoot cross-trainers and those new to barefoot performance.

Get as close to the ground as possible.

The Active Ortholite Performance Insole is made of 98% recycled PU foam, which helps reduce waste and the use of virgin plastics.

Strong, non-marking rubber compound for sticky grip and high-abrasion when you need it most.

*The main materials in all our Vegan* products are synthetic and aren’t derived from animals. We don’t (yet) have the transparency we need over the production of all the small components (such as adhesives and dyes) used in these products to ensure they meet vegan best practices. So, whilst we believe the shoes are vegan, we’re not yet able to guarantee it and want to be fully transparent.

Based on a single shoe in Men's size: EU 42 | UK 8 | US 9
Vamp, Quarter, Tongue (100% RPET) Overlays (40% Polyester, 60% Polyeurathane)
Collar and Tongue Lining (60% RPET, 40% Polyeurathene Microfibre)
100% RPET
100% Synthetic Rubber
Brush off mud and clean with a damp cloth
Remove insole and dry at room tempreture. Keep out of direct sunlight and avoid putting on a radiator.
LIQUIPROOF PREMIUM PROTECTOR. With wear, your shoes may loose some water resistent quality that is applied to the textile of the shoes. This product can be used to replenish the water repellent qualities.
Laces and insoles can be replaced.
The Revivo Take Back program is our initiative to extend the lifetime of our shoes and keep them out of landfill. Customers in the UK, US and Europe can send us your worn Vivos for free. Sorry global Barefooters, we’re working on expanding free shipping for our Take Back program to more regions, and eventually, make this available worldwide.
With stabilising TPU overlays and a 2mm performance Primus outsole, the versatile Primus Lite III is made for building barefoot strength, balance and mobility through CrossFit, weight and strength training, primal movement, calisthenics and HIIT workouts.
It’s also suitable for experienced barefoot runners, or light running for newer runners.

Barefoot performance for your best performance. Unleash your natural potential in every workout.

Stripped-back soles for barefoot living — so you're never too far from nature, even in the city.

For natural stability, natural sensory feedback and natural strength.

The Primus Outsole is a light and thin 2mm performance outsole that's designed to put as little as possible between your feet and the ground. The side wall profile is as low as it can be, giving it a slightly lower profile towards the heel, and the sole subtly overlaps the toe — offering enough protection for urban environments, without compromising natural movement. Strong geometric shapes lead to strong feet, so the tread pattern uses our signature hexagonal design to help multidirectional flexibility and grip.

Shoes that put fashion before fitness and money before wellness? The unnatural isn't working. It's time to get back to basics and let nature heal us.
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