1.Impervious material CPE,Coated-PP,SMS 2.Over-the-head neck style ... material:The SMS material provides AAMI level 2 barrier.CPE material: Blue impervious polyethylene material passed ASTM1670 and ASTM1671 ... box,75pcs/case GCG42 Half-Back, Thumb loop, Blue CPE ASTM1670/1 15pcs/box,75pcs/case GCG43 Open-Back, ... ASTM1670/1 15pcs/box,75pcs/case Open Back CPE Impervious Gown 2011 New SMS Impervious Gown