Minus33 Merino Wool Women's Liberty Lightweight 1/4 Zip 100% Merino Wool Imported QUALITY LIGHTWEIGHT BASELAYER: 100% Merino Wool our "First-On-Last-Off" active wear. Easy care technology means your wool is machine washable and dryable. Versatility and warmth make this merino wool  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 Medium = 6.4 oz. (181 grams). UPF Rating 25 100% 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 =6.72 oz. (190 grams)