The Mosquito Bivi is an ultralight, compact bivy sack designed for lightweight travel enthusiasts who wish to stay close to nature without compromising insect protection. Weighing just 235 grams, it strikes the perfect balance between breathability, waterproofing, and insect defense. Its durable outer layer is made from Pertex® Quantum fabric, while the waterproof polyester floor with silicone coating shields against moisture and morning dew. Raised seam construction prevents contact with wet ground, and the fine mesh above the face lets you sleep under the open sky, protected from insects. A conveniently placed YKK® zipper with dual sliders ensures smooth entry and exit, while full compatibility with all Cumulus® sleeping bags and tarps makes the Mosquito Bivi an ideal addition to any ultralight sleep system. Perfect for minimalist travelers, long-distance hikers, and anyone who values lightness without compromise, the Mosquito Bivi is a reliable companion for nights spent in nature.