In our lightest weight, this remarkably soft and warm crew top will be your go-to base layer for any activity in any season. Made of itch-free 100% merino wool, nature’s best insulator. Lightweight fabric provides warmth and comfort during a range of activities and temperatures. Machine wash, line dry. Fine-gauge knit with flat-lock seams for a remarkably smooth fit. Thumbhole cuffs keep sleeves snug at wrist. Imported. | Men's Cresta Ultralight 150 Crew Top, Wool Technical Midweight Crew Neck Top, Midweight Technical Crew Neck Top, Top Base, Ll Bean, L L Bean, Base Layer, Mens Fitness, Lightweight Fabric, Fabric Care