Minus33 Merino Wool Explorer Midweight Wool Crew wool Imported QUALITY MIDWEIGHT BASELAYER: 100% Merino Wool super soft and extremely comfortable. The best in easy care technology means your merino wool is machine washable and dryable. Versatility and warmth make this three-season merino wool crew neck thermal an essential part of your outdoor gear. CRAFTED TO FIT: Sizes S to XXL Discreet thumbholes and yoked shoulders allow comfortable movement. Outfitting anyone from the Hard-at-Work to the Hard-at-Play. EXPERIENCED BRAND: Although there are many copy-cats on the market today, Minus33 has been a trusted brand since 2004. IMPORTED: As the legacy of a 100+ year old USA based woolen company, Minus33 knows quality and comfort in Merino Wool. We are committed to bringing you the best Merino Wool products at a reasonable price. TECHNICAL DETAILS: 100% 18.5 Micron Merino Wool 230 g/m2 Interlock knit construction with flatlock seams. Garment Weight Size Large = 9.6 oz. (272 grams). UPF Rating 50+