This single-wall shelter features proven geometry, freestanding carbon fiber pole structure, and a Cuben Fiber waterproof breath-ability canopy material with E-Vent. The Si2 Cuben is the pinnacle of advanced material design and performance for summit assaults or ultralight backpacking.
Si2 Cuban Features
Carbon ION Pole System
Carbon ION pole system with shockcord. ION is specifically engineered for ultralight, three-season performance and to shave weight without sacrificing strength.
What is Cuben Fiber?
Cuben fiber material has an unmatched strength to weight ratio. Developed by Cubic Technologies, the material utilizes Dyneema fibers for strength. Bonding Dyneema fibers to a waterproof, breathable membrane results in the specialized Cuben fiber material becoming an ultralight, strong, breathable fabric.
Capacity Rating Min. Pack Pack Floor Vestibule Head
Weight Weight Size Area Area Hight
Two Four 2lbs 3oz 3lbs 2oz 6 x 20in / 44.3 sq ft 14 sq ft 41in
Person Season 1kg 1.44kg 15 x 51cm 4.1 sq m 1.3 sq m 104cm
(no vest.) (no vest.)