Year-Round Shelter For A Pair Of Minimalist Backpackers.With its minimalist design and extra interior space, the MSR Twin Sisters Shelter offers ample room for two plus gear without weighing down your pack. Pitch the Twin using the two included lightweight poles, or save even more weight by using your own trekking poles to support the twin-peak roof. A steep roof pitch sheds snow, and flaps at the base block out whipping winds and spindrift.DuraShield coating on the canopy repels rain, snow, and precipitation when the weather turns foulFront and back access flap doors roll open to aid ventilation and make loading gear inside of this tent easy as pieA pair of peak vents allow for cross-ventilation at the top of each door so hot air can rise inside and then escape outsideSix-point pitch sets up quickly by staking into the ground securelyReinforced guy points provide additional points to set up lines when vicious winds hammer your camping spotFloorless construction saves weight and, if you're using adjustable trekking poles for support, lets you tinker with the pitch angle