I'm selling this because my child has outgrown it. I'm not sure if it's underwear, but it's also recommended for layering. I think it's easy to wear as it's 100% cotton. Design with the NIKE logo printed on the chest. There is some stretching around the neck. It has been used, so I'm selling it at a low price. For anyone who likes it. addidas PUMA UNDER ARMOUR new balance outdoor umbro Columbia HELLY HANSEN THE NORTH FACE mont-bell Champion Converse asics MIZUNO GAP GU UNIQLO Outdoor Sports Underwear Loungewear