This bag compresses very small, and is lightweight. Perfect for summer nights and even fall/spring on the right night. What more can you ask for? It is comfortable and for the price it cannot be beat. I would highly recommend this bag. I'm not a huge fan of Kelty products, but this bag simply can't be beat for the price and for the role of a lightweight down summer bag. I am 6'3" and the large accommodates me well.I have only used it 3 times, but it seems like it will hold up for a long time.