Aquaglide Blast II Water Trampoline Attachment 2015 Duratex: Commercial grade fabric reinforced PVC material. UV Block: Materials specially treated for high resistance to the sun's damaging rays. RF Weld: Radio frequency welded seams for high quality and outstanding durability. Interloc: Heavy duty stainless fittings and convenient Interloc straps for modular use. UP Grip: Incorporates convenient boarding handles that fold flat.