1) PP, microporous, Tyvek 2)Meeting type 4,5,6 3)Ultrasonic Bound seam ,with self adhesive tape 4)Liquid-Proof ... filtration.E. Light weight,durable and superior breathable and comfortable.F.High structure strength with excellent tonsile,tear and abrasion resistance ... . 1pc/polybag, 25pcs/ctnc. 1pc/polybag, 50pcs/ctn Type 4,5,6 Coverall