It's probably our biggest star, which we are extremely proud of, although it’s only 3 years old. This sleeping bag is filled with 850 g of the highest quality 850 cuin Polish down. When laid out, it is really impressive - it may even be said to be beautiful. A revolutionary, advanced winter sleeping bag, weighing only 1330 g. Made of Pertex Quantum fabric weighing 35 g/m², equipped with advanced V-chambers, which gives it a big advantage over the competition. The Teneqa 850 is a combination of Japanese technology, Polish down and Polish innovation which has led to the creation of a great product.