Fjellduken Extreme Mountain Bivvy Bag

Description

❄️ Stay warm, stay wild — conquer the extremes with Fjellduken!

The Jerven Fjellduken Extreme Mountain Bivvy Bag is a military-grade, multi-functional thermal shelter featuring PrimaLoft insulation and a waterproof aluminium-coated outer layer. Measuring 204 x 220 cm when opened, it offers exceptional warmth and versatility for year-round mountain use. Proven to maintain a 29°C temperature difference in freezing tests, it’s trusted by the Norwegian Army and designed for professionals who demand reliable, compact, and adaptable outdoor protection.