Fit and Design: Slim fit 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance Fit updated to improve functionality while enhancing aesthetics for a range of body shapes Back body seam wraps to front for body-enhancing fit Crew neck with raglan sleeves Flatlock seam construction designed to minimize chafing Go Far. Feel Good.(TM) Guarantee Technology: Merino 250 fabric offers breathable warmth, moves sweat away from the body, and provides next-to-skin comfort in colder conditions Additional Details: Weight: 218g / 7.69oz Machine wash warm gentle cycle Do not iron decorations Do not bleach Tumble dry low Cool iron as needed Do not dry clean Wash with like colors