Vaenait Baby Toddler Kids Boys Boxer Brief 3-Pack Underwear Set Choo Choo Train Get shipping DISCOUNT to order more than 2 items. S(2T) / M(3T) / L(4T-5T) / XL(6T-7T) 100% Cotton Machine wash cold, tumble dry low. Do not bleach. Full coverage for comfort Order one size up if your kids are overweight.