Thermolite Extreme insulation. Double offset, differential cut construction. Nylon Diamond ripstop outer shell. SlumberWick, quick-dry liner removes moisture for added warmth and comfort. Fully contoured hood with flip-over option, half length draft tube, anti snag zipper protection, trapezoid design with ventilated foot box for extra room and thermo regulation. * Comfort rating: +30� F * Bag Size: 32" X 82" (reg) 34" x 86" (long) * Fill/Carry Wt: 1 lb/2.8 lbs (reg) 1.1 lbs/3.06 lbs (long) * Carry size: 7.5" x 12"