Duo Protect system is an inner protection for the buoyancy chamber against damage, which has a self-sealing functionality for the buoyancy chamber.
Inside the swim chamber is another airtight stretch laminate so that if the outer skin (2) is punctured the internal gas pressure will force
the inner skin (1) to overlap the hole and seal the leak.
Duo-Protect-System – a buoyancy chamber with sandwich structure, multi-layered.