Alex Aulbach can sleep easy knowing that his vest is part of the SPR range that places the environment first. Recycled polyester jersey made from recycled plastic bottles. Happy FIt longer and wider for extra movements and comfort. Aqua X glue - solvent free so there are no more harmful solvent chemicals. PVC free buoyancy foam. Duel layer neoprene construction. Reduced individual foam panel segments. YKK locker zipper with silicon dipped pull string.