PATENTED DESIGN - LESS SMOKE. The patented design features a unique double wall that creates ultra-clean gasification and a secondary combustion. This allows fuel to burn more completely and with less smoke COMPACT DESIGN SAVING SPACE- The Solo Stove Titan is designed to nest inside the companion Solo Stove Pot 1800 (sold separately) leaving you with more room in your backpack. Also fits great into any hiking backpack for your next adventure!