Name: SMALL / White
SKU: OS1-43341W-S

The OS1st Thin Air Performance Calf Sleeves provide relief from shin splints, calf cramps, Achilles tendonitis, and more using support and graduated, medical-grade compression. OS1st's Skin Thin Zones Technology keeps your legs cool and applies varying levels of pressure to six different zones, giving you just the right amount of compression in each area to promote circulation and make the sleeve breathable while hastening recovery and keeping you comfortable at rest or during workouts. With a slim profile, the OS1st Thin Air Performance Calf Sleeves can also be comfortably worn under clothing. During workouts, moisture-wicking fabric helps keep the sleeves on securely, preventing chafing and making sure they stay in place, with no bunching, no matter what you're doing! Each package includes two compression sleeves.

Sizing (by ankle/calf circumference):

Small - 6.5â€³ - 8.5â€³ / 17 - 22 cm | 9.5â€³ - 14.5â€³ / 24 - 37 cm
Medium - 8.5â€³ - 10.5â€³ / 22 - 27 cm | 12â€³ - 17â€³ / 30 - 43 cm
Large - 9.5â€³ - 12.5â€³ / 24 - 32 cm | 14â€³ - 19â€³ / 35 - 48 cm
X-Large - 12â€³ - 14â€³ / 30 - 36 cm | 14.5â€³ - 20â€³ / 37 - 51 cm

We offer free shipping within the US for orders over $50 (excluding Relay shoes).

Shipping FAQs

How long will it take for my order to arrive?

Most orders within the Continental U.S. arrive in 48 hours.

Sometimes certain products are not available in our stores so we are fortunate enough to be able to special order these items directly from the brands. Once an order is SHIPPED it should take between 3-5 business days for it to arrive at its destination.

Please note that these shipping timelines are only an estimate and that once an order leaves our stores, there may be carrier or customs delays that are outside our control. Additionally, we are not always able to make address changes after an order is placed, so please be sure your shipping address is correct before placing your order.

How can I track my order?

After an order has been shipped you will be sent a tracking email with a link to track your package. If you do not receive this email please email us at shoponline@runpacers.com

I recently placed an order online but haven’t received any tracking information?

Once an order has been placed you should expect to receive TWO emails. First, a confirmation email that your order has been processed and second, an email that your order has been shipped with tracking information. If you have not received any tracking information after 5 days of placing your order please email us at shoponline@runpacers.com

We gladly accept returns within 30 days of purchase. Please note that returned merchandise must have the original packaging still intact. Shoes must be in their original shoe box. Sale items are final and cannot be returned or exchanged. We cannot accept returns on any carbon fiber shoe. Refunds are issued to the original form of payment. Orders placed with store credit can only be refunded in store credit. Shipping costs are non-refundable.

If your item is damaged and your purchase date falls outside our standard return window, then please contact shoponline@runpacers.com and we’ll be happy to serve you.

Items purchased in one of our retail stores can be returned or exchanged at any store or by using our automated online return system.

Items purchased online can be returned at any store or by using our automated online return system.

Contact our customer experience team.

OS1st TA6 Thin Air Performance Calf Sleeves

Subscribe to pacers newsletter