Snugpak Softie Technik 5 Synthetic Mummy Sleeping Bags are manufactured in Snugpaks West-Yorkshire factory using a combination of state of the art computer controlled quilting machinery and a traditional team of skilled machinists.Throughout the construction process quality performance fabrics are utilised to produce a muumy shape sleeping bag that is lightweight yet extremely warm. The outer is manufactured from Paratex Steelplate, an extra strong lightweight highly breathable ripstop water repellent and windproof fabric. The inner is manufactured form Paratex Light, a very soft lightweight fabric that is exceptionally breathable and able to wick the perspiration quickly from the source. The insulating material is Softie Premier, a super-fine fill that provides a luxurious down like feel that retains most of its thermal properties when wet. Snugpaks 'profiling' no stitch through construction techniques increases loft and eliminates cold spots caused by traditional quilt lines. Comfort is further enhanced with a head hugging hood, jumbo neck baffles, chisel toe foot, and anti snag 'easy glide' full length 2-way zip with chunky windproof baffles.Two bags can be zipped together to make a double (left and a right hand opening needed).