Our exclusive wool performance fabric is an ideal base layer for cold-weather sports. Made of itch-free 100% merino wool, nature's best insulator, it will keep you comfortable in a wide range of activities and temperatures. This 150 weight top can be worn alone indoors or as a base layer during active winter pursuits. Form Fitting: Fits close to the body. True under layer. Lightweight fabric provides warmth and comfort during a range of activities and temperatures. Made of itch-free 100% merino wool, nature's best insulator. Machine wash, line dry. Thumbhole cuffs keep sleeves snug at wrist. Wicks moisture and dries quickly for on-the-move comfort. Fine-gauge knit with flat-lock seams for a remarkably smooth fit. Naturally resists odors for the lifetime of the fabric. Imported. Fit: Fitted Women's Cresta Ultralight 150 Crew Top, Stripe Ocean Waves/Storm Teal Medium, Wool L. L. Bean