Keep your ski boots, hiking boots, and running shoes free of bulk and friction with our Men&';s Classic Thermal Merino Base Layer 3/4 Bottom. 100% responsibly sourced Merino wool provides ultimate breathability and comfort, while a newly redesigned base layer pants fit helps reduce sag and excess fabric - perfect for your layering needs Features Slim Fit 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance Fit updated to improve functionality while enhancing aesthetics Merino-covered elastic waistband and traditional fly design Flatlock seam construction designed to minimize chafing Size M inseam: 21.5" (55 cm) Knit in Vietnam: 100% Merino Wool. Exclusive Of Decoration Garment Weight: 204 g = 7.2 oz Style: SW016365