If you e, you should have a e knife. It could save your life. More than one er 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 e knife can be for quickly cutting yourself out of danger.. . Those who e 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 ers have even been able to use their e 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 e knife can be used as an “underwater attention-getting device” by knocking on the tank to catch a e buddy’s notice.. . The Kershaw Amphibian is a simple, sleek e 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 Amphibian blade is sharpened on both sides—one side offers a standard edge, the other a partially serrated edge. The Amphibian comes complete with the Kershaw er'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 have adjustable quick-release buckles.