1.Material: cotton, comfortable to wear, Not hurt the darling skin2.Size: Suitable for either lovely boy or lovely girl aging from 0 to 3 years old.3.Take them for your darling, protect your little darlings' knees from bruises and scrapes when they are curiously about crawling. Also very fashion sock,making your children more lovely.4.Easy to change the diaper, high quality can use for a long time, suggest hand wash gently not machine wash.Breathable, absorb sweat, deodorization, perfect baby shower gifts.5.Keep your darling's arms and legs warm when you take baby to the airport,supermarket,subway or any other place with cool air conditioner