Nanga built their reputation on developing sleeping bags designed to perform in some of the most extreme climates on Earth.

The Udd Bag is a high-performing sleeping bag which can perform well even in wet conditions. A three-season model, it is constructed from a ripstop nylon with a water-repellent finish and in addition has a high-performance 770FP duck down which has a waterproofing treatment aiding its function and performance in damp conditions.