The Ascend® Whammy -20º Mummy Sleeping Bag seals in your body heat and locks out cold for below-zero backpacking in extreme temperatures. This insulated winter sleeping bag is comfort rated to -20°F with 3 lbs. 8 oz. of Thermolite Extra® synthetic fill. The mummy shape is ideal for the trail, with a trapezoidal footbox that allows better circulation and comfort. The full-length draft tube and chest baffle lock in heat, and double-layer offset seam construction eliminates cold spots. The Ascend Whammy -20º Mummy Sleeping Bag has locking zippers, a fully adjustable contoured hood, and packs in its own compression bag. Shell: Polyester ripstop. Lining: Polyester taffeta. Imported.

• Shell: Polyester ripstop 20D
• Lining: Polyester taffeta 20D
• Thermolite Extra fill, 3 lbs. 8 oz.
• Full-length draft tube and chest baffle lock in heat
• Offset seams eliminate cold spots
• Fully adjustable contoured hood
• Roomy trapezoidal footbox
• Durable zippers with locking sliders
• Comfort rated to -20°F
• Packs easily in its own stuff sack