Under Armour UA Woman MTN December Sunlight Anorak Jacket Loose: Full, loose fit for enhanced range of motion & breathable comfort no matter where your workout takes you. ArmourStorm Construction - 100% waterproof fabrication remains breathable, keeping you completely dry. ColdGear Fabric - Transports moisture to keep you dry and traps heat to keep you warm. ArmourLoft / ArmourZone Insulation - Super lightweight insulation that delivers superior warmth without the weight.