- Under Armour Boys' Bottom Size Chart - Little Kid - Under Armour Boys' Bottom Size Chart - Toddler - Under Armour Boys' Top Size Chart -Infant - Under Armour Boys' Top Size Chart - Toddler - Under Armour Boys' Top Size Chart - Little Kid - Under Armour Boys' Bottom Size Chart -Infant - Under Armour Boys' Bottom Size Chart - Big Kid - Under Armour Action Sports Chart - Under Armour Boys' Top Size Chart - Big Kid - Keep young athletes comfortable and confident with the Under Armour® Kids Essential Quarter Socks 6-Pack, performance socks featuring moisture-wicking fabric and a cushioned footbed designed to handle everything from recess to travel ball. The quarter-length cut hits just above the shoe line for a clean look while reinforced construction holds up through countless washes and playground adventures. - Moisture-wicking fabric pulls sweat away to keep feet dry and comfortable. - Cushioned footbed provides soft impact absorption for active play. - Reinforced heel and toe for extended durability through daily wear. - 6-pack rotation covers a full week of school and sports activities. - 97% polyester, 2% spandex, 1% natural latex rubber. - Machine wash on cold and tumble dry low. - Imported.