Features, Thickness - 3/2mm, Seams, Glued and Blind Stitched, Zip - Back Zip, Neoprene - 50% ZG400 super stretch, Contour Collar, Smooth Skin Chest and Back, Warranty - 1 year workmanship and materials, , The Synergy is a great summer suit, with a host of features, at great value. The Glued and Blind Stitched seams provide a seal from any water penetrating the suit, and the ZG400 neoprene ensures flexibility and fit. The furnace lining, combined with the smooth skin chest and back, mean this suit is going to keep you warm this summer. The Synergy is finished with a Contour Collar and Strategic Seam Placements for comfort.