NRS Youth Shorty Wetsuit The suit is made of top quality 2.5-mm neoprene for insulation and abrasion resistance The closed cell neoprene supplements the flotation of the child's PFD, floating them higher in the water We also add Titanium to the adhesive layer bonding the inner fabric to the neoprene The Titanium particles help hold in body heat, without adding bulk Rugged flat-lock stitching in the seams stand up to children's high activity levels