Billabong 2mm Absolute Spring Suits. Absolute Series is for the surfer who prioritizes warmth, durability and value. Exterior is made from 100 percent Recycled Superflex Jersey. Smart Foam is upcycled car tires and neoprene scraps combined to create the highest thermal retention and light weight stretch combination. Internal Recycled Silicon Stretch Jersey for superior comfort. Easy Back Zip entry system # 10 Metal YKK zipper quality durable. Flatlock Stitch Construction. Aqua Alpha Water Based Adhesive.