Minus33 Merino Wool Men's Allagash Lightweight 1/4 Zip 100% Merino Wool Imported QUALITY LIGHTWEIGHT BASELAYER: 100% Merino Wool designed to be "First-On-Last-Off" active wear. Easy care technology means your wool is machine washable and dryable. Versatility and warmth make this  zip thermal an essential part of your outdoor gear. CRAFTED TO FIT: Sizes XS to 3XL in a regular fit. Mock neck for maximum warmth.  zip for adjustable venting. 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% 17.5 Micron Merino Wool 170 g/m2 Jersey knit construction with flatlock seams. Garment Weight Size Large = 8.8 oz. (249 grams). UPF Rating 32 100% 17.5 Micron Merino Wool 170 g/m2 Jersey knit construction Mock neck for added sun protection and zip for venting Flat lock seams to prevent chafing and machine washable and machine dryable Weight of Garment Size Large =8.8oz