Scubapro Men's Definition Steamer 5mm Wetsuit Ultraspan Chest Panel and Stretchtec Side Panels Results a Highly Flexible and Snug Fit Infrared Fleece Interior Lining Reflects Body Heat for Extra Thermal Insulation Zippered Seals At Wrists and Ankles Plus a Rear Diagonal Zipper Block Water Entry Abrasion Resistant Fabric on Shoulders and Seat, Along with Elbow Pads and Kneepads Spine Pad Cushions the Tank, Providing Additional Comfort During Extended Dives