. The Neese Sani Light 77 Series garments are made of special vinylized PVC on nylon fabric that has a comfortable lightweight appeal, and yet maintains its reliable durability for tough jobs.Outerwear Sani Light 77 Bib Trouser-Blk-XL The Sani Light 77 Bib Trouser features adjustable elastic suspenders that attach with non-conductive snaps.