New with tags Lightweight and supple, the REI Silk crew shirt provides great warmth for its weight and offers luxurious comfort. Features Lightweight, breathable, pure silk jersey keeps you warm and comfortable Dropped back hem stays tucked in Rib-knit finish on neck and cuffs Hand wash warm and lay flat to dry; do not bleach or iron Imported. View all REI Co-op Men's Base Layer Tops Technical Specs Best Use Multisport Shirt Type T-shirt Fabric Silk jersey Underwear Weight Ultralightweight Sleeve Length Long Sleeve Gender Men's Sustainability From a Climate Neutral Certified brand 2060