Men's Polypropylene Performance Rib Knit Crew

1x1 Rib Knit fabric offers stretch and snug fit Fabric Weight: 5.5 oz Fiber Content: 100% Polypropylene Wicks moisture and dries quickly Crew Neck Set-in long sleeves Rib collar and cuffs help keep the cold out Available in Talls and sizes up to 3X Style #21LS Care Instructions: Machine wash cold with like colors. Use only non-chlorine bleach. Line dry. Do not iron.  Rated for Cold to Very Cold and High Activity