The Slumberjack Cooling Sleeping Bag Liner is a lightweight and versatile outdoor essential for summer camping adventures. This rectangular-shaped liner, measuring 80" L x 34" W, is designed for one person and is suitable for camping, backpacking, and hunting trips. Made from a polyester/spandex blend in a blue color, this sleeping bag liner provides a comfortable and insect repellent-free environment for a good night's sleep under the stars. Perfect for women, men, and kids, this sleeping bag liner from Slumberjack is a must-have for any outdoor enthusiast.