Aqua Lung Sport 3mm Quantum Stretch Childrens Snorkel/Scuba/Water Sports Wetsuit The Aqua Lung Sport Quantum Stretch Fullsuits are highly flexible making them exceptionally comfortable The entire wetsuit is constructed with 3mm super stretch neoprene which stretches to 235% of its original shape Smooth skin seals at the neck, arm, and leg openings seal out water Smooth skin chest and back panels dry quickly to prevent evaporative heat loss Back Zipper with leash