Fabric:100%cotton. Children's Underwear:Boy's Briefs. Model Number:139F001. Boys Briefs,Boys Underwear,Children's Underwear.1.Material:cotton.2.Size:S,M,L,XL.3.It is quite comfortable for wearing.4.we could correct it as you request,about the fabric,size,color,printing,ect Boy's Briefs,Boy's Underwear,Children's Underwear(139F001)