Minus33 Merino Wool Men's Kobuk Expedition 100% Merino Wool Imported QUALITY EXPEDITION BASELAYER: 100% Merino Wool super soft and comfortable. Easy care technology means your wool is machine washable and dryable. Maximum insulation and adjustable venting makes this merino  zip an essential part of your cold weather gear. CRAFTED TO FIT: Sizes XS to 3XL in a regular fit. Mock neck for maximum warmth.  zip allows adjustable venting. Fully backed zipper and garage make this comfortable as a base layer. Discreet thumbholes round out the features. Outfitting Anyone!!! 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 400 g/m2 Interlock knit construction with flatlock seams. Garment Weight Size Large = 19.2 oz. (544 grams). UPF Rating 50+ 100% 18.5 Micron Merino Wool 400 g/m2 Interlock knit construction Mock neck for added insulation with zip for venting and thumb holes in sleeves Flat lock seams to prevent chafing and machine washable and machine dryable Weight of Garment Size Large = 1 lb. 3.5 oz. (550 grams)