It's all about optimal warmth with the Nordisk Celcius sleeping bag. The high quality 90/10 goose down is a good start but all that filling is useless if the warmth is able to escape and the cold able to creep in. This is why Nordisk have designed the Celcius with a close fitting drawcord hood, a thermal heat collar and thermal seams over the zips. The mummy shape keeps the bag close to your body and as a result you retain more warmth, its 83cm width at the shoulders is more compact than some but the closer fitting, the warmer you're likely to stay.
The inner is silky smooth and lovely to sleep in and the outer has a water repellent finish on the base, head and foot, which also makes the Celcius great for lightweight bivvy adventures.
The stuff sack is also a dry bag so you can hang it on the outside of your backpack without worrying about the contents getting wet and all the air can be squeezed out and locked out using the integrated air valve to make for an even smaller packed size.
The 1,290g weight of the large version is impressive for a sleeping bag with a -4 comfort rating, further improving its backpacking credentials.
All said, we think the Nordisk Celcius is the ideal companion for hiking and camping in the UK where it tends to get cold at night, even in the summer.