Environmentally friendly features: 3 mm high quality non-petroleum based neoprene uses a PAH free formula. Flatlock stitching for comfort against bare skin. V-shaped collar for better comfort. Chest panel in mesh-skin for wind and abrasion resistance. O-ring seals on the wrist and ankles to limit water entries. Supratex knee panels offering excellent abrasion resistance with the added bonus of increased flexibility. Printed design on the shoulders to protect from the abrasion of the BC. Printed design on the wrist to help keep the dive computer in place. Loop at the end of the zipper and leash on the slider to assist the don and doff. Hook on the right thigh to attach the optional hood.