OS1st Active Comfort Performance Crew Sock

Experience lasting comfort and support with the Active Comfort Sock. Designed for all-day wear, it features plush bamboo charcoal cushioning in the heel and toe, along with ultra-thin cooling panels to regulate temperature and increase airflow.

Small

• US: Men 4-6.5
• US: Woman 5-7.5 

Medium

• US: Men 7-10
• US: Woman 8-11 

Large

• US: Men 10.5-13
• US: Woman 11.5-PLUS 

X-Large

• US: Men 13.5