The Smartwool Men's NTS Midweight Bottoms feature a regular fly design, flat-locked seams, and a covered elastic waist band, forging peace between your base layer, socks, and boots. These odor-fighting, non-chafing, softer-than-your-baby-blanket bottoms are handy option for anything from skiing to cold-weather climbing. SmartWool's merino wool is better than polypro and stays warm even when wet.