Pure cotton,soft and comfort Package included: 6-pack pieces of series undies Fabric-encased leg opening and waistband for comfort Size 12 size 14 size 16 size 18, The customer reported that these sizes are smaller than expected, and due to the low elasticity of the all cotton fabric, it is recommended to take 1-2 sizes larger for a more comfortable wearing experience CARE: Machine wash cold with like colors. Only non-chlorine bleach when needed.Do not iron.Recommended for cold water washing, low temperature and low speed drying When we choose children's underwear ,we tend to pay more attention to comfort more than style.Winging Day kids underwear focus on high-quality panties and at the same time,modern & fashion are our extra pursuit,make the products simple but creative,it is in harmony with the little ones' publicity and happy.