Thermolite Quallo insulation. Double and triple offset differential cut construction eliminates cold spots. Polyester hex ripstop outer and polyester taffeta liner. Fully contoured hood with flip-over option and easy access drawcords. Full-length insulated draft tube. Anti-snag zipper protectoin. Internal media pocket for cd player, watch etc. Trapezoid foot box keeps feet in natural position. * Comfort Rating: 0° F (-18° C) or 20° F (-7° C) * Max user ht: 5' 11" (reg), 6' 5" (long & magnum) * Size: 32" x 82" (reg), 34" x 86" (long), 36" x 90" (magnum) * Fill/Carry Wt: 20° F: 2 lbs/4.4 lbs (reg), 2.75 lbs/4.7 lbs (long), 3 lbs/5.5 lbs (mag) * Fill/Carry Wt: 0° F: 3.25 lbs/5 lbs (reg), 3.8 lbs/5.25 lbs (long) * Carry Size: 9" x 20" (reg/long 0), 10" x 21" (magnum), 10" x 20" (reg 0), 11" x 20 (long 0)