The Robens Glacier II sleeping bag is made of polyester fabric, which is filled withAir Thermo synthetic insulation. The mummy-type shape prevents heat loss. The combination of the thermal collar and the slat located at the zipper also works well in lower temperatures, further retaining heat. During warmer days, a two-pull zipper will come in handy, facilitating the flow of cool air without having to unzip the entire structure. The head and neck are protected by an adjustable hood with a drawstring, which allow you to individually adjust the size and parameters of these sleeping bag elements. Robens brand is known for using innovative solutions in its products, which allow you to take care of your comfort and safety in all conditions. The sleeping bag is distinguished by the Shark Fin design, which gives you extra space in the legs, allowing you to choose the most comfortable position even after carefully adjusting the parameters to your body. The Zip Together feature is extremely useful for pair travelers using sleeping bags with opposing zippers. This option allows two sleeping bags to be zipped together for greater comfort and better warmth retention. The sleeping bag retains its heating properties even when partially wet. SAFE CHOICE The Glacier II sleeping bag is free of harmful PFC compounds, which have an extremely negative effect on the proper functioning of the human body. In addition, the sleeping bag uses Ripstop nylon, whose unique weave prevents accidental mechanical damage. Strengths Airthermo Airthermo synthetic filling retains an insulating layer of warm air inside the hollow fibers, which provides excellent heat retention - especially when wet YKK zipper YKK zippers are undoubtedly the best two-way zippers in the world known for their reliability and durability. Ripstop Ripstop outer fabric is highly resistant to damage and reduces tearing. Connecting Zippered - two compatible single sleeping bags can be quickly and easily joined together to form a double sleeping bag. Foot layout Special profile allows the foot to rest comfortably in a natural, unrestricted position. Keeping you warm The loft expander function pulls the interior away from the exterior to increase attic space and keep you warm. Packing A compression pouch with a cap makes packing quick and easy and adjusts for smaller pack sizes. Season For use from spring to fall. PFC-free PFC-free safe finish. Overall length [cm]. 220