The men's Oasis Leggings with fly make cool weather sports better, day after day. Crafted from ultra soft, breathable 200gm merino jersey, they provide enough warmth under a pant for really cold days in winter sports, but breathe well enough for morning runs in the fall or hiking high in the mountains. Flatlock seams and a brushed waistband eliminate chaffing, and because merino resists odor naturally, they are ideal for multi-day adventures.