Atlas Size Guide

All measurements are in centimetres (CM). Measure your body and compare with the size chart below.

Atlas Sports Bra

Size Bust (CM) UK Size US Size
XS 86 4-6 2
S 91 8-10 4-6
M 97 12-14 8-10
L 102 16-18 12-14
XL 107 20-22 16-18

Atlas Halter Neck Top

Size Bust (CM) UK Size US Size
XS 86 4-6 2
S 91 8-10 4-6
M 97 12-14 8-10
L 102 16-18 12-14
XL 107 20-22 16-18

Atlas Shorts

Size Waist (CM) Hips (CM) Inside Leg (CM) UK Size US Size
XS 64 89 76 4-6 2
S 70 97 76 8-10 4-6
M 76 104 79 12-10 8-10
L 84 110 79 16-18 12-14
XL 93 118 81 20-22 16-18

Atlas Leggings

Size Waist (CM) Hips (CM) Inside Leg (CM) UK Size US Size
XS 64 89 76 4-6 2
S 70 97 76 8-10 4-6
M 76 104 79 12-10 8-10
L 84 110 79 16-18 12-14
XL 93 118 81 20-22 16-18

How to measure: Use a soft measuring tape. For bust, measure around the fullest part. For waist, measure around the narrowest part. For hips, measure around the fullest part. For inside leg, measure from the crotch to the ankle. If you're between sizes, we recommend sizing up.

FAQs

What is OBSYRN?

OBSYRN is a women’s performance wear brand focused on sculpted silhouettes, precision fit, and minimalist design. OBSYRN garments are engineered to move naturally with the body while maintaining a clean, refined athletic form.


How do OBSYRN garments fit?

OBSYRN garments are designed with a sculpted athletic fit that follows the natural shape of the body. Most customers find OBSYRN clothing true to size. If you prefer a more relaxed fit, consider sizing up.


Are OBSYRN products available for pre-order?

Some OBSYRN releases are available through pre-orders during launch periods. Pre-orders allow us to produce garments based on demand while maintaining quality and reducing excess production.


How long do OBSYRN pre-orders take to ship?

Pre-orders typically ship within 1 week from the date the order is placed. You will receive a shipping confirmation email once your order has been dispatched.


How long does shipping take after pre-orders close?

Once pre-orders close and items are available in stock, shipping times are typically:

UK orders: 3-5 business days
USA / Rest of the world orders: 5-8 business days

Delivery times may vary slightly depending on courier services and destination.


Do you ship internationally?

Yes. OBSYRN ships worldwide. Shipping options and rates are calculated at checkout based on your location.


Can I return an OBSYRN item?

Returns are accepted within 30 days of delivery provided the item is unworn, unwashed, and returned in its original condition with tags attached.


What should I do if my order arrives damaged or incorrect?

If your order arrives damaged or incorrect, contact us within 48 hours of delivery with your order number and photos of the item so we can resolve the issue.


How can I stay updated on new OBSYRN releases?

Follow OBSYRN on social platforms or subscribe to the mailing list to receive updates on future drops, restocks, and new releases.

 

Explore the full OBSYRN collection of women’s activewear including jackets, flared leggings, and performance shorts.