NRS Youth KidSkin Jacket neoprene Protecting the body's core is critical to heat retention and Terraprene provides superior insulation for activities in the water 0.5-mm Terraprene is stretchy, so it won't restrict movement and is super comfortable Titanium laminate adhesive reflects heat back to the body for maximum warmth with less bulk Flat-lock stitching gives you strong, durable seams that hold up to kids' boisterous activities Two-way stretch nylon inner and outer