DESC: Lighter and warmer than its synthetic fill cousin, the Lamina 20, the Mountain Hardware Ultralamina 15 Sleeping Bag features an ultralight nylon shell and lining, tough enough to handle the rigors of backpacking, climbing, and paddling trips. Although the performance cut is a little less roomy than the Lamina 20, it offers maximum warmth for minimal weight, bringing its comfort rating down to a frosty 15 F. The laminated construction is an advantage over traditional sewing methods, eliminating puncture holes throughout the bag's shell while stabilizing the fill without compressing it and therefore compromising the loft. Also, half zips with dual sliders on either side of the bag allow the user to zip open just enough room to poke the arms through and read or cook while remaining warm.. - Sleeping Bags & Pads > Synthetic Sleeping Bags - Sleeping Bags & Pads > Synthetic Sleeping Bags