... heat seal backingWe are professional embroidered patches factory1)Material: polyester, twill, cotton etc for fabric2)Embroidery: ironed, sewn, stuck, paper ... patches, girl and boy scout patches, Logo patches,heat seal backing,club patches, school patches, costume made patches ... , twill, cotton, silk, non-woven, stain, etc for fabricStyleIron-Onironed, sewn, stuck, paper coated or cloth, Iron-On ...