Eva Eco-friendly. Ecoprene outer shell. Comfortable fit. Heavy-duty front zipper. Softer, lighter, more durable vest interior constructed of 100% PVC-free Biofoam. Eco-friendly. Ecoprene outer shell. Revised comfortable fit. Softer, lighter, more durable vest interior constructed of 100% PVC-free Biofoam. Side panels in stretch lining fabric for improved comfort. Armholes cut large for riding comfort. 2 woven straps with quick-release buckles. Heavy-duty front zipper. Interior EVA molding that keeps the PFD surface away from the skin. Lumbar comfort zone inside the PFD. (Extra foam padding to minimize the pressure on your lower back while bolstering support.) Strategically-placed mesh drain panels. (Mesh panels drain away excess water for quick drying and thermal-regulated comfort.) D-ring for a floating lanyard. Loop at back neck for goggle-to-PFD attachment cord. UL approved.