If you asked what we would want to take with us in a stranded situation, we'd probably say a filled iPod, food, or perhaps a back catalog of Playboy (for the articles, of course). A more practical choice, however, would be the Gerber Bear Grylls Survival Knife ($60). Designed by Gerber and the Grylled one himself, this unique wilderness tool features a half-serrated high carbon blade, a stainless steel pommel at the base of the handle, an emergency whistle in the lanyard cord, and a host of goodies in the included sheath, like a fire starter, diamond sharpener, and Bear's Priorities of Survival pocket guide for those times when you need some Yoda-like wisdom. [Thanks, Andrew]
Get maximum utility with a minimal imprint on the environment with Wenger EvoWood Knives ($65-$130). Just like regular Swiss Army Knives, these feature a variety of tools, from seven implements in the EvoWood 11 to a full eleven — including pliers with a wire crimper and cutter — on the EvoWood S557, but more importantly feature the company's new concave/convex Evolution handle design, created from sustainable top-quality Swiss Walnut that would other wise be waste material, making these some of the world's greenest multi-tools.