Imported Elastic closure Machine Wash HIGH QUALITY: Our thermal underwear set for toddler and older boys includes 2 long-sleeve t-shirt and a pair of matching sweatpants; Extra warm waffle-knit underwear set for your son, perfect for layering, bedtime, sleepovers, and relaxing; Ideal for staying cozy on winter days THERMAL TEE: Extra warm and snug boys' long-sleeve thermal t-shirt ensures maximum comfort; This soft waffle top will keep your toddler or little boy comfortable on the coldest winter nights; Skin-friendly and warm fabric makes this sleeping top a must-have item in your son's wardrobe MATCHING SWEATPANTS: Lounge or snooze in these soft thermal sleepwear joggers made from skin-friendly fabric and topped with an elastic waistband that will keep him comfortable and won't restrict his movement; Extra warm waffle-knit long johns for boys are perfect as a base layer in the autumn and winter WAFFLE KNIT PAJAMA SET: A complete colorful sleepwear set for boys that retains warmth to keep your little one snug and comfy; This thermal 4-piece underwear set will quickly become your son's favorite bedtime outfit; Buy several different sets and stretch out his collection with these extra warm outfits EASY CARE: Machine Wash, Tumble Dry; Please see the product description for additional details