Under Armour Base 2.0 Top - Women's: Total versatility, total performance through high exertion in cold conditions. Mid-weight ColdGear grid fabric is engineered for heat-trapping core temperature consistency and fast drying moisture transport. Raglan sleeves and ergonomically placed flatlock stitching enhance mobility for superior fit and comfort. ArmourBlock treatment stops odor causing microbes for maximum scent suppression. Recommended for temperatures below 55. 93 percent 4.5 oz PolyArmour / 7 percent Elastane.