Minus33 Merino Wool Women&#39;s Moriah Lightweight Crew 100% Merino Wool Imported Quality Lightweight Baselayer: 100% Merino Wool designed to be "First-On-Last-Off" active wear. Easy care technology means your merino wool is machine washable and dryable. Your Minus33 long sleeve crew shirt naturally wicks moisture and controls odor. Crafted To Fit: Sizes XS to 3XL in a regular fit, crew neck. Princess cut seams for a tailored fit. 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 = 5.6 oz. (158 grams). UPF Rating 25 100% 17.5 Micron Merino Wool 170 g/m2 Jersey knit construction Lightweight baselayer Flat lock seams to prevent chafing and machine washable and machine dryable Weight of Garment Size Large =5.76 oz. (163 grams)