The Desert Pine series sleeping bags are made with Techloft+ insulation. Techloft+ Insulation consists of multi-hole staple-length micro-denier fiber that have a siliconized finish for maximum insulation, loft, and compactness. The Desert Pine uses a 2-layer offset construction, sometimes called a "bag within a bag." The contoured hood and mummy shape helps seal up your warmth and keep you warmer. The Desert Pine is a great backpacking sleeping bag to take along on your hikes that won't take up all the space in your pack. Features: - TechLoft+ Insulation - 2-Layer Offset Construction - Insulated Chest & Zipper Baffle - Contoured Hood - Compression Stuff Sack Included Specifications: - Outer Material: 210T Nylon Ripstop - Outer Color: Gray & Rust - Liner: 210T Polyester - Liner Color: Black - Shape: Mummy - Zipper: #8 Separating - +20 degrees - Length: Long - Size: 34" x 86" - Fill Weight: 44 oz. - Total Weight: 4 lbs. 6 oz.