Removable vestibules for addition weight savings. Generous mesh with zip-out panels for added ventilation when needed or full closure when maximum protection is required. Four to five high-grade aluminum poles, freestanding construction. Full coverage rain fly. Steep sidewalls to shed wind and snow.
Vestibules have their own poles for support.
Rain fly pitches separately from tent so you can use it as a roof for a modified snow cave shelter to save weight and space. Stick with name-brands that include Bibler, Marmot, Integral Designs, and Dana Design. Vertical sidewalls for maximum interior space and shedding precipitation. Sturdy guy-out points sewn to the tent body for tying down the tent should things get downright blustery. Just because a manufacturer says a tent will sleep three doesn't make it so.