Underwater Waterproof case for Pentax Optio S,S4,S4i,S5i,S5n Guaranteed underwater performance up to 16 ft. (5m) deep UV coated polycarbonate lens cover allows users to take crystal clear pictures Transparent and flexible case for convenient camera control Reliable sealing system with waterproof zipper and "Roll & Velcro" closure Meets JIS (Japan Industrial Standard) protection class 8 for waterproofing