I tested it at -10 centigrades without a tent. I was in polar clothes and it was quite comfortable. I think it's a very good choice. Good materials, price to quality ratio is excellent! It's also important that there's no cotton in any part of this sleeping bags, so it gets dry very qickly. Hood is also big and has optimal shape. But it's not produced now! Instead of this model campus produces the series "Adventure" which are comparable with model "Polar", if somebody likes to buy it I can help… Full review
Construction 3 layers on top and 2 layers bottom. Thermoloft 6 hollowfibre filling 400 grammes per square metre. Complete with compression sack. Despite the price this is a high quality expedition sleeping bag. If they are not available in the states then I suggest someone gets the Campus franchise quick! Campus make a whole range of camping gear including tents and rucksacks. Full review
Note the Campus range of camping gear is made in Poland and may not be available in the States. Outer fabric is nylon ripstop 70D, inner fabric is polycotton. Comes complete with compression sac. Double layer construction. This is a quality sleeping bag despite the price. Campus gear is excellent and widely available here in the UK. Their web site is www.campus.com.pl and you can see all the gear but the language is Polish. Full review
Campus, based in Poland, makes tents, backpacks, sleeping bags, trekking poles, and outdoor footwear and apparel.