Outerwear Magnum 45 Coat w/Attached Hood-Green-L All stitching, except garment hems, are double needle stitched. All seams in the garment, except the hems, are to be sealed on the coated side of the fabric with a clear 7/8â wide PVC tape making the garment 100% waterproof. The Neese Magnum 45 series is a medium weight yet heavy-duty nylon fabric coated with strong and flexible neoprene to provide maximum cold weather flexibility with a high resistance to abrasion.