If all you need is a sharp blade with a couple of key tools, pack the Expanse. You get a hollow-ground, stainless-steel blade and two sturdy screwdrivers (one flat and one Phillips), which helped testers pick rocks out of boot soles, tighten the clamps on trekking poles, and even fix a car’s fuel throttle on an Alaskan highway. The curved handle feels substantial in hand, and there’s a little tab at the base of the half-serrated, 2.6-inch blade’s spine that lets you open it with the flick of a thumb. $55; 3.5 oz.; leatherman.com.