Slumberjack Lapland 40 Down Hybrid Mummy Sleeping Bag Lapland 40 Sleeping Bag Long gives you all the performance needed for the mountain with the comfort and functionality Slumberjack is known for DriDown is treated to create a hydrophobic finish on each down plume, allows you to stay dry longer, loft better, & dry faster than untreated down Hybrid Zone construction combines insulations of DriDown and Slumberloft Pro for warmth and function of down with rapid drying of synthetic Dual 57" full length zippers with two sliders to provide venting options, "Arms Out" dexterity without leaving your bag Features: Solar Liner, relaxed mummy shape, double-dri panels on the hood and foot box for additional water resistance, compression sack included