The Mountain Equipment ION BIVI is an ultralight, water-repellent bivy sack, specially designed for demanding alpine use. The DRILITE® LoftTM outer material offers an optimal combination of waterproofing and breathability, supported by fully taped seams. The mummy-shaped design with anatomical "Shark Toe" foot section ensures an ergonomic fit and high thermal performance. A generous hood with drawstring provides additional protection. Measuring 230 cm x 88 cm, with a compact pack size of 17 cm x 10 cm and weighing only 280 g, made from 100% polyamide, this bivy sack is ideal for professional mountaineers who value functionality and low weight.