If you're going to be carrying a compass anyway while out in the wilderness, why not carry one that performs multiple functions? That's the idea behind the Loki-Nav compass, which also packs a mirror, ...

【Quality & Sturdy】This carabiner keychain is made of titanium alloy material, non-corrosive, oil resistance, non-metallic smell, 4 times strength of stainless steel but ultra light weight for ED ...