You move around when you sleep. Everyone does, but not all sleeping bags are designed with this in mind. This one is. __ Firstly, the construction and filling is the same all round so if you turn on your side or front you won't find the cold suddenly seeping in. __ Secondly, it stretches. So if you want to curl up or spread out the bag will stretch with you. And the SL model is slightly smaller because it is designed for women.__ This makes it an excellent all round sleeping bag for hikers, bikers and and anyone who wants a warm and comfortable sleep in temperatures around 0°C.__Separate drawcords on the ergonomically shaped hood for precise adjustmentErgonomically shaped foot section perfectly adapted to the natural foot posture, extra insulation section for added warmthDryzone at the head and feet protect from moisture with a water repellent shell fabricBody-warmer fleece inserts made from fluffy brushed Thermo Fleece keep the kidney zones, top and bottom warm.Full-length, two-way YKK zip (coupleable)Anti-catch baffle with extra reinforcementInternal valuables pocketFull compression stuff sackConstruction: Top and bottom are perfectly insulated with shingle construction that overlaps 1.3 times in the Exosphere +2º_ Weight: 1430g + 90g Stuff Sack_ Fill: Deuter Thermo ProLoft_ Inner Lining: Deuter Poly Lite Soft_ Outer Lining: Durable, breathable, quick drying 40D Nylon_ Pack-Size: 19 x 33cm_ Bodysize: ~175cm__ Deuter Thermo ProLoft_ A special thermal process turns polyester fibres into top quality technical Thermo ProLoft insulating fleece. The combination of dense and hollow fibres results in the prefect blend between durability, weight and warmth properties - a fleece material that is easy care and durable yet compact and offers excellent insulation at minimal weight. The synthetic fibres also absorb very little moisture. Short drying times, excellent loft and thus insulation properties even when damp, are all advantageous characteristics. Deuter Thermo ProLoft is also coated with a thin layer of silicone to give it good lofting properties.