Now on Kickstarter from Atlas Flashlights is the Atlas C57 Tactical Flashlight that uses titanium and carbon fibre materials making an ultra tough tactical light that you can depend on for your mission... "The C57 is the ultimate high performance light. Constructed of extremely strong titanium and carbon fiber. An efficient LED produces up to 7 days of constant run-time. Four light settings cater to every occasion — from moonlight to high burst.