




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 !
Lace up the Women’s Olympus 275 and send it all day on the trail with
lightweight comfort, durability, and protection. It’s a techy shoe built for technical trails.
Altra Olympus 275 is a Technical Trail Running for All-Day Trail Running

Altra went all in on tech so you can go all out on the trail. O275 got durability, protection, and lightweight comfort from top to bottom.
Go all in on your next ultra or long trail run. No matter what the day throws your way, the Olympus 275 will help keep you comfortable and protected all day, on all terrain.

DETAILS
Best For: Technical Trail Running, All-Day Trail Running
Heel-to-Toe Drop: 0mm
Upper: MATRYX® one-piece woven upper
Midsole: Compression-molded EVA
Outsole: Vibram® Megagrip
Weight: M 11.9 oz / 338.8 g | W 9.6 oz / 273.6 g
Cushion: High
Stack Height: 33 mm
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.
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