Lightweight, warm, and comfortable, the Gander Mtn. Fleece Sleeping Bag Liner adds 12°F of warmth to any sleeping bag. Durable, non-pilling 100% polyester fleece construction continues to insulate, even if it gets wet. At 32" x 80", this liner fits most full-size sleeping bags. Its rectangular shape offers ample room in the foot box and shoulders and its two-way drawstring with plastic cord locks offers a snug, secure fit. Works great as a liner to keep the inside of your sleeping bag clean or opens flat for use as a blanket. Features a two-way, self-repairing, full-length #5 zipper on the right side for secure closure. Sewn-in elastic straps keep liner securely rolled up for easy transport or storage. Machine washable. 2.54 lbs. CPSIA 90 certified fire retardant.