For colder conditions and higher activity levels, the Under Armour Boys's Basemap 2.5 Leggings are Built for extreme and midweight layering. Offering ArmourBlock technology for superior odor suppression as well as strategic ventilation to keep you nice, this performance base layer delivers maximum mobility and a Strengthive fit during cold weather workouts. Built with a moisture transfer system and abrasion free fit, the Under Armour Basemap 2.5 Leggings for men provide cold weather Safe guardion and feel great against your skin.