... built-in elastic band Good for bio-security Boots With Elastic Band: 1.Size:thickness=0.07mm 2.Colour: ... transparent 3.Material: polyvinyl chloride 4. Convenient slip-on boots, with built-in elastic band 5.Good for bio-security ... , light weight 7.Packing:50pcs/box,20box/carton,10carton/pallet Boots With Elastic Band