An updated the fit in the year-round Merino 150 Base Layer Bottoms improves functionality while enhancing aesthetics. Ultra-smooth Merino helps regulate body temperature, breathes well, and naturally resists odours. What else do you need in a baselayer? How about smooth flatlock seams to help minimize chafing and a wide, fabric-covered waistband? With Core Spun technology, Merino is wrapped around a nylon core for added durability while still keeping the comfort of ultra-soft Merino next to skin. It's everything you need and more to adventure all year long.Core SpunMerino fibers are wrapped around a nylon core for added durability while still keeping the comfort of Merino next to skinMerino 150This breathable, soft, lightweight fabric offers next-to-skin comfort, moves sweat away from the body, and acts as a versatile performance layer for warmer conditions.Features The lightest-weight Merino jersey fabric uses a nylon core to increase durability while still keeping 100% Merino wool next to skin Fully functional fly Merino-lined, 1.5" (4 cm) wide elastic waistband designed for maximum comfort; 100% Merino next to skin Flatlock seam construction designed to minimize chafing Size Medium inseam: 31" (78.5 cm) Weight: 0.164 kgs Fit: Slim Country of Manufacture: China Composition87% Merino Wool, 13% Nylon. Exclusive Of Decoration.CareMachine Wash Warm. Gentle Cycle. Wash With Like Colours. Do Not Bleach. Tumble Dry Low. Cool Iron As Needed. Do Not Iron Decoration. Do Not Dry Clean. Model Wears Size Large: 187.96 cm Height, 86.36 cm Waist, 106.68 cm Hip, 81.28 cm SW000755 Smartwool Men's Classic All-Season Merino 150 Base Layer Bottoms (Black 001)