The Icefall is Robens most technical synthetic sleeping bag. There are several sleeping bags of various weights in the Icefall range. This one is the Icefall IV, a 4 season bag with a comfort range down to -11 degrees for a woman or -18 for a man. All of the Icefall sleeping bags utilise a MicroThermo High Loft filling which combines micro fibre and three denier fibre. The micro fibre compresses really well whilst the three denier fibre provides great loft. It is a bonded fibre providing greater stability and durability than the fibres commonly used in sleeping bags meaning that your sleeping bag will serve you better for longer. The shell material used is a lightweight 15 denier ripstop nylon which is very compressable. The bag is shaped to provide enough space in the vital areas around the arms and elbow whilst remaining snug in other areas to reduce heat loss. The narrowest area is around the ankles but the foot area is more generous for added comfort with extra insulation to ensure your feet are kept warm. Great care has been taken in the design of the hood area. There is an insulated baffle around the hood area to ensure comfort even when the cord is pulled snugly around the head and face. The draw cord is made up of two cords of different textures to enable the user to easily determine which cord to pull to tighten and release – even when it is too dark to see clearly. Inside the bag is a well contoured thermo-collar which fits nicely around the neck to reduce heat loss from the body. Size: 210 x 80 x 50 cm (LxWxW). Body length: 190 cm. Shell: 15D 429T nylon ripstop. Filling: MicroThermo High Loft. Lining: 30D 290T polyester Taffeta, 100% polyester. Pack size: 43 x 25 cm. Zipper: YKK Auto lock – two-way open. Construction: Shingle layer on top / double layer on bottom. Temp (Tcomfort) woman: -11. Temp (Tlimit) man: -18. Body contour profile for optimum warmth to weight ratio. Redefined neck baffle position and profile minimise draughts and heat loss. Shingle layer construction for maximum loft and insulation. MicroThermo High Loft Insulation provides superior insulation and compressability. Hood drawcord differentiated by thickness and structure for easy adjustment by touch. Shark fin foot box with extra insulation. Full-length insulated zip baffle. The item “Robens ICEFALL IV Four 4 Season High Loft Mummy Sleeping Bag” is in sale since Friday, March 2, 2018. This item is in the category “Sporting Goods\Camping & Hiking\Outdoor Sleeping Equipment\Sleeping Bags”. The seller is “armysales” and is located in Selby. This item can be shipped worldwide.