Small, flat and ergonomic knife, with quick-release extraction system that prevents accidental loss of the knife, since you need to press two release points on the sheath at the same time to get it out.Ergonomic rubber, soft handle, with high attrition coefficient, for secure grip.Double hilt thumb tab and hole on the handle, to hook it onto a safety line. The blade is made from special, tempered stainless steel. One side has a smooth edge and the other is partly serrated, complete with a line cutter.The Apnea knife can be attached to your legs with the classic straps, or to your weight pocket.