REI Mountain 3 delivers a strong, weatherproof shelter for use in high-mountain environments where strength and livability are top priority. Efficient, livable design gives generous usable space, featuring a semi-rectangular floor plan. Hub-pole construction adds structural integrity and makes setup easy. Youll have quick, convenient and sheltered access through two doors with a large front vestibule and small rear vestibule. Dual weatherproof AirLift vents increase tents strength in high winds and prevent condensation by allowing airflow can be controlled from inside tent. Insider Floor seams are engineered to create a clean, taut pitch factory seam-taping ensures a waterproof seal. Leak-proof rainfly construction ensures that water wont sneak through susceptible areas such as guyout points and zippers. Innovative snowflaps keep wind and snow out of vestibule while providing an extended floor. Welded TPU zipper flaps ensure smooth zipper operation with no annoying fabric snags. Stay organized with multiple interior storage options thanks to four mesh side pockets and hang loops located throughout. Strong, reliable DAC aluminum poles REI-exclusive Strong Arm clips at each pole intersection strengthen pole structure and allow swift setup. Watertight welded vestibule window brings light inside and lets you view conditions outside. Color-coded rainfly corners allow easy orientation of rainfly on tent for easy setup. Attention to detail shows in the reflective guyout points and zipper pulls. Comes with guylines and tighteners, stakes, pole and stake bags, and tapered, easy-to-use compression stuff sack. Save weight and create a minimalist shelter by using just the rainfly, poles and footprint sold separately. Average minimum weight specification is based on tent, rainfly and poles only.