What Our Gearhead(R) Experts Are Saying:"This bag surprised me with how warm and packable it is for a synthetic. I used it on a damp fall backpacking trip and stayed dry and toasty all night-plus the 3D footbox is a game-changer for keeping my toes warm."When crisp autumn nights or damp spring mornings call us outside, we zip into the Deepsleep -5C/20F Sleeping Bag for reliable warmth and comfort in unpredictable conditions. Built for three-season use, this mummy-shaped bag is crafted entirely from recycled polyester-making it not only lightweight and packable, but better for the planet, too. Even when the air is damp, the synthetic Texpedloft fill stays warm and insulates effectively. A sculpted hood with a cinchable drawcord and an insulated collar seal in heat, while the 3D footbox adds room and includes a stash pocket for foot warmers or extra socks. It comes in multiple sizes for a tailored fit, with a color-coded system to help quickly ID the temperature rating. When it's time to pack up, the compression sack makes carrying easy.