The Body Glove Stellar Back Zip 4/3mm Full Wetsuit is constructed with Magnaflex, a material that's 10% lighter than standard neoprene and takes on less water for higher stretch and flexibility when you're surfing. Its durable glued and blindstitch seams allow minimal water intake while holding up to the rigors of daily surfing while the Nano tritec kneepads ensure you'll be able to slip into the suit =for many surf sessions to come.