




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 !
Slip into the knitted sock of the Primus Lite Knit Natural - now created with a 59% Tencel, 24% Woolmark Wool upper - and instantly feel the benefit of fit. This super-flexible update to our beloved barefoot performance trainer is still just as ready to move however you train, just more natural.

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.

Elastic laces that only need to be tied once and then pulled on.

Based on a single shoe in Men's size: EU 42 | UK 8 | US 9
Natural knit 92% tencel, 8% ROICA spandex
Unlined
Brush off mud and clean with a damp cloth.
Remove insole and dry at room temperature. Keep out of direct sunlight and avoid putting on a radiator.
Once you can’t repair or don't need them anymore, send us your old Vivos and we’ll make they sure they’re given a second life, or if they’re really well-loved, we'll store them until we launch our recycling solution.
Feel your workout to the full via the 2mm outsole of the Primus Lite Knit Natural, designed for enhanced barefoot performance and durability. With a 59% Tencel, 24% Woolmark Wool upper, and an Active Ortholite Performance Insole made of 98% recycled PU foam taking strides towards our shared sustainability goals, there's even more to love about one of our beloved barefoot styles.

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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