Instruct: Classify an Amazon review as either positive or negative.
Query: 25 degree? No way.

This bag won't even keep you warm in 40 degree weather. For the price, it's just fine for summer camping. But if you plan on backpacking, it's too big, heavy, and the warmth to size ratio is awful. If you're serious about backcountry camping/backpacking, save your money and get something that'll keep you warm, pack light, and last.