100% 18.5 Micron Merino Wool 230 g/m2 Interlock knit construction * Blue embroidered minus33 logo on left hip and unisex with no fly - discounted for these reasons * Flat lock seams to prevent chafing and Machine washable and machine dryable * Weight of Garment Size Large = 10.2 oz. (290 grams) * Limited Sizes Available