Stay ready for action with the Under Armour Hand Warmer. COLDGEAR Technology ensures ideal warmth even in the coldest weather. Two inner pockets hold separate heat packs for soothing heat to both hands. These are the optimal choice for football players looking to stay warm at night or late in the season. It comes in one size that fits most youth and adult players. Keep your hands toasty with the Under Armour Hand Warmer.