When you need a great sleeping bag to come back to after a long day on the trail, choose the Celsius XL Sleeping Bag, by TETON Sports. This three-to-four-season sleeping bag was built to last a lifetime. It's filled with innovative fiber fill that keeps you warm and is rated to below freezing temperatures. The mummy-style hood can cinch in around your head for additional warmth and keeps your pillow clean. Its durable shell will stand up to years of rigorous adventures. It's a warm, comfortable sleeping bag that's soft to the touch, but don't take our word for it—read the reviews! The Celsius XL is keeping thousands of car campers happy in The Great Outdoors.