"A great 3-season sleeping bag for backpackers, the Stansport Trekker 20 Mummy Sleeping Bag offers versatile comfort from an ultra-lightweight design that packs tight. High performance Poly-Therm hollow synthetic insulation allows this lightweight 2.5-lb. bag to keep campers warm and comfortable in temperatures down to 20F, giving you plenty of bag for a full 3 seasons of adventure. This advanced insulation continues insulating performance even when it gets wet, helping backpackers handle anything Mother Nature throws at them. An insulated draft collar help seal in body heat for greater comfort in cool weather. Featuring a comfortable polyester pongee lining, the Trekker features a quiet, yet rugged, waterproof polyester diamond ripstop shell that reduces noise when you move in the bag. Built-in chest pocket. Smooth-sliding, oversized, taped zippers. Comes with a compression carry bag. Imported. Manufacturer model #: 517-100. Performance 3-season mummy sleeping bag Comfort rated to 20F Comfortable polyester pongee lining Quiet, yet rugged, waterproof polyester diamond ripstop shell High performance Poly-Therm hollow synthetic insulation - even insulates when wet Built-in chest pocket Smooth-sliding, oversized, taped zippers Compression carry bag Specs: 86""L x 34""W x 4""H Weight: 2.5 lbs."