These Under Armour 1.0 bottoms will help you retain more of your body heat. They are a great base layer for early-season hunting or for trekking into the backcountry. These lighter-weight bottoms are great as a base layer for warmer weather and higher exertion levels. This is Under Armour's lightest-weight base layer and it's engineered for maximum moisture transport and minimum bulk. ColdGear fabric with thermal grid creates an efficient climate-control layer ideal for warmer conditions or high activity levels. ArmourBlock treatment delivers optimum scent protection. The 1.0 Bottoms are constructed with flatlock stitching, ergonomic seam placement and raglan sleeves for superior comfort, mobility and fit. Fabric is fitted to promote optimal freedom of movement and less muscle fatigue. 2.7-oz. 100% PolyArmour. Imported.