The Cave is the latest offering by Heimplanet, and it's an interesting tent. For starters, the tent is inflatable, and can be set up in about a minute using a standard pump.

The frame, inner tent and outer tent all work as one unit, and only have to be set up the very first time. The unique geodesic sdtructure is exceptionally sturdy, and can withstand high winds.

The tent has double-layered waterproofing, thanks to the 2-wall construction. This means there's as little condensation as possible (much like your triple-walled canteen).