Fabric: 100% cotton,super soft and breathable Newborn Baby Clothing 10-piece Set: 5 baby bodysuits + 5 pairs of baby pants Bodysuit and Pants Set Design 1: Bodysuit has three metal snap buttons at the bottom for easy changing. The pants have elastic and shrinkable cuffs for easy play Bodysuit and Pants Set Design 2: All bodysuits and pants are already matched and suitable to give to babies from 0-12 months Suitable for 0-12 Months：Please note the size and label correspondence,0-3 month = 3 M, 3-6 month = 6M, because the baby's growth rate varies, please choose according to the size chart Suitable seasons: spring, summer, fall and winter. In the warm season, the bodysuit and pants can be worn separately, and in the cold season, it can be used as a basic inner layer.