The purpose of the Ten Essentials is to improve your chances of survival in an emergency situation. The Mountaineers’ “essential systems” list, the new incarnation of their original ten essentials, has gotten away from true survival essentials. Sun protection? Repair kits? Illumination? Nice, but not essential to my survival on a dayhike in the Pacific Northwest. As my partner, who used to be in the army, pointed out, the more gear you require people to have, the more shortcuts they’re going to take, and they might not choose the true essentials. Nobody wants to carry emergency gear that isn’t needed. I will choose my own items for comfort.