Details Smartwool Classic Thermal Merino Base Layer Bottoms - Men's Toasty warm leggings for cold weather, the Smartwool men's Classic Thermal Merino Base Layer bottoms use sustainably sourced 250g/m2 pure Merino wool for maximum warmth, moisture management, odour control and next-to-skin comfort. Flatlock seams throughout eliminate chafing. Covered elastic waistband and traditional fly design Flatlock seam construction eliminates chafing Size Medium inseam: 30" (76 cm) Fabric: 100% 250g/m² ZQ Certified merino wool (exclusive of decoration) Slim fit, Mid rise Specifications Classic Thermal Merino Base Layer Bottoms - Men's