The Kershaw Knives Amphibian Dive Knife is super light and will get you out of unfortunate situations. If you dive, you should have the Kershaw Knives Amphibian Knife because it could save your life. More than one diver has become tangled in the increasing amount of line and net left in the ocean these days. Anyone who's ever been placed in such a situation knows what a lifesaver a good dive knife can be for quickly cutting yourself out of danger. Those who dive in or around kelp forests understand that the possibility of getting entangled in sea kelp is another very good reason for having a sharp knife handy. Some divers have even been able to use their dive knives to free fish or marine mammals trapped in line or nets. Or, when a strong current prevents you from holding onto rocks or outcrops, a knife can be used to anchor yourself to the seabed. And of course, your dive knife can be used as an "underwater attention-getting device" by knocking on the tank to catch a dive buddy's notice. The Kershaw Knives Amphibian Diving Knife is a simple, sleek dive knife. It offers all the strength of solid, corrosion-resistant 420J2 stainless steel from tip to pommel, but with a skeleton handle design to reduce weight. A co-polymer insert in the handle assures an excellent grip. The Kershaw Knife Amphibian Diver's Knife's blade is sharpened on both sides-one side offers a standard edge, the other a partially serrated edge. The Kershaw Knives Amphibian Waterproof Knife comes complete with the Kershaw Diver's Sheath. The durable Kydex sheath has a press-n-pull mechanism that secures the knife regardless of your position in the water. The included depth-compensating leg straps of the Kershaw Knives Amphibian Serrated Knife have adjustable quick-release buckles.