Solid, robust mask with technical divers in mind. Outer frame made of shock absorbent techno-polymer. The backing rear support is a one-piece molded frame. Assembled with stainless steel AISI 304 bolts and screws. Cardanic joint buckles (double joint buckles) rotate both up-and-down and in-and-out. Quick counter-posed push button activation is easy to use even when wearing gloves. Wide headpiece on silicone strap provides stability and comfort. Due to its particular structure, the mask may be folded to fit into BC pockets.