Because our lower torsos and legs require more insulation in some places and less in other spots, Under Armour created their Basemap 2.5 Leggings with varied fabric densities. It's a mix of Under Armour's heavyweight UA Base 3.0 fabric and midweight UA Base 2.0. You get heavier UA Base™ 3.0 where your body needs it most, and mid-weight UA Base™ 2.0 where you sweat more and need to dump heat. The lighter fabric wicks away sweat that would otherwise chill you. Layer up with UA—the brand that put cold-weather comfort on the map. These Basemap 2.5 Leggings are ideal for high exertion activities like hunting, climbing, skiing, snowboarding and cold weather trekking. The midweight UA Base 2.0 material is more breathable than the UA Base 3.0 fabric, making it more effective at wicking perspiration away from your skin. Under Armour designed their Basemap 2.5 Leggings with a fitted construction that follows your contours but doesn't cling like compression-fit clothing. * UA Basemap 2.5 contains extreme and mid-weight layering for colder conditions and higher activity levels * Lightweight, 4-Way Stretch fabrication improves range of motion and dries faster * Signature Moisture Transport System keeps you warm, dry, and comfortable * Anti-Odor technology prevents the growth of odor-causing microbes to keep your clothes fresher, longer * Smooth Flatlock Seams prevent chafing * Working fly for convenience * Base 3.0: 7.0 oz. Polyester/Elastane * Base 2.0: 4.5 oz. Polyester/Elastane $60 tyd per pair OBO in the lower 48 states...these retail for $79.99 Paypal (gift) or MO accepted Sizes available...2 large pairs, 2 xlarge pairs, 1 triple xlarge pair