Merino Wool liner for added warmth. Nylon Diamond ripstop outer shell. Thermolite Extreme insulation. Double offset, differential cut construction. 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: 20° F * Max user Ht: 5'11" (reg), 6'5" (long) * Size: 32" x 82" (reg) 34" x 86" (long) * Fill/Carry Wt: 1.7 lbs/3 lbs (reg) 1.8 lbs/3.1 lbs (long) * Carry size: 7.5" x 12"