




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 !
Our softest and most responsive FWD VIA yet! It’s got an all-new midsole, updated upper, and redesigned tongue to deliver max comfort. With our new Altra EGO™ P35 midsole, it’s 19% softer and 15% more responsive than the original FWD VIA, for a light and efficient ride. An engineered mesh upper was made to increase breathability while an updated plush tongue delivers a soft feel at first step-in. With a 4mm drop and rocker shape geometry, this shoe offers a smooth, efficient, and natural toe-off to help you crush your next run. Spread out and say “ahh” with Altra’s Original FootShape™ Fit, our roomiest toe box for natural movement and space through the midfoot. Tackle your daily miles and epic training runs with comfort in every stride.
| Best For | Road Running, Walking |
|---|---|
| Heel-to-Toe Drop | 4mm |
| Upper | Engineered Mesh |
| Midsole | Altra EGO™ P35 |
| Outsole | Rubber |
| Weight | 8.7 oz / 246.6 g |
| Cushion | Max |
| Stack Height | 33mm/37mm |
| Support | Neutral |
| FootShape™ | Original |
With a Roomy Toe Box and Zero-to-Low Drop, our shoes are built to keep you comfortable and keep you running.

All of our shoes are made with room for your toes, so they’re free to move naturally, with confidence in every foot strike.

Our Zero-to-Low Drop shoes are built to place your foot in a natural position, with a stable and confident foundation to run on.
Our shoes come in four different running experiences.
This Shoe
Lightweight yet cushioned shoes with a rocker shape that works with your body to encourage an effortless and smooth stride.


Altra EGO™ P35 is a lightweight midsole foam, designed to help deliver an effortless, efficient, and comfortable underfoot feel.

A rocker shape is designed to give the feeling of being propelled forward with each step and provides an efficient toe-off without taking away from your natural stride.

With Altra’s signature FootShape™ fit, you get our roomiest toe box with plenty of room to help your toes move freely, and space through the midfoot.

This product received the American Podiatric Medical Association (APMA) Seal of Acceptance, awarded to products found by the Association to promote good foot health.

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