The Carter's 2-Piece Pajama Set in Lt. Blue & Solid Navy Blue is a cute and comfortable sleepwear option for children aged 3 months. The solid is made from 60% cotton& 40% polyester. The print pajama is made from 100% cotton. The pajama set features snap closure along the inner legs and has long sleeves , making it suitable for all seasons. The lightweight design ensures a cozy and breathable fit for toddlers who are just starting to explore the world of sleepwear. The light weight cotton/polyester fabric is perfect all seasons , this pajama set is machine washable for easy care.