Slumberjack Borderland -20 Dual Zipper Hooded Rectangular Sleeping Bag External Velcro Tabs Combined with Dual zippers create "arms out" functionality Right zipper extends around the foot box for increased ventilation and versatility Full length dual zipper design improves ventilation and comfort Layered, offset, quilt construction prevents cold spots Draft tubes along zippers keep out cold air and prevents heat loss Full length dual zipper design improves ventilation and comfort External Velcro tabs combined with dual zippers create "Arms Out" functionality Heavy duty #8 zipper with anti-snag protection Internal chest pocket keeps personal items close Soft touch liner for improved comfort