Features:- Fit: Slim - Our Slim Fit Is Intended To Follow The Contours Of The Body- Our Lightweight Merino Jersey Fabric Uses A Nylon Core To Increase Durability While Still Keeping 100% Merino Wool Next To Skin- Merino-Lined Elastic Waistband Designed For Maximum Comfort- Fully Functional Fly- Flatlock Seam Construction Designed To Minimize ChafingSpecifications:- Material: 88% Merino Wool, 12% Nylon Compare prices from: Smartwool in Men's Underwear