DESC: Additional Companion Cup has same features as standard cup: one-liter capacity, insulating cozy, drink-through lid, measuring cup and FluxRing. Adjustable-flame burner is housed in a wind-screen, reducing heat loss in windy conditions. Anodized aluminum 1-liter cooking cup with drinking spout provides excellent heat transfer and cleans up fast. Base and cooking cup unsnap for storage; base and 110g fuel canister (sold separately) stow inside the cup; lid snaps shut for storage. Burner and cooking cup are integrated into a single convenient package for instant setup and compact storage. FluxRing heat exchanger improves fuel efficiency; regulated flame provides maximum efficiency. Innovative and efficient, the Jetboil integrates the pot and stove for fast setup and compact storage. Click on the link at left to see how it works. Neoprene cozy stays in place during cooking without melting, increasing heat retention and cooking efficiency. No assembly or priming required. Perfect for fuel-efficient, ultra-ligh...