SmartWool Men PhD Light Bottom Body: 56% Merino Wool, 44% Polyester; Mesh: 54% Merino Wool, 46% Polyester Knit in Vietnam Slim Fit; Mid rise - Minimal Merrow seam construction provides superior durability and is soft against skin Gender-specific body-mapped panels of lighter fabric for additional breathability and moisture management Covered elastic waistband and traditional fly design - Size M inseam: 30IN (78 cm) Style:SW016106