Vango Ultralite Pro sleeping bags are designed for year round explorers who demand low weight and small pack size.Their very effective design uses wicking 4T synthetic insulation in a 'trilateral' construction, with Vango's Thermal Reverb system and Thermal Embrace system to enhance your warmth and comfort. 'Thermal-Reverb' is a reflective aluminised lining which reflects your radiated body heat back towards you, while preventing insulation layers from rubbing together for increased longevity. The 'Thermal Embrace' system uses elasticated thread in the lining to make the bag 'hug' your body.The tightly woven construction of the 20D, 33g/m­², nylon Polair Active outer fabric creates a warm, soft to touch and easily compressible material which is also water and tear resistant.Lightweight, compact, comfortable and easily packable, Vango Ultralite Pro Sleeping Bags are recommended by the DofE and The Scout Association.Tri-Lateral construction: reduces cold spots and increases core temperature4T synthetic insulation - improves warmth to weight ratio by trapping air in its patented channel structureInsulated, adjustable shoulder baffle retains heat within the sleeping bagStructured hood design keeps the head and shoulders warmer, while dual cord thicknesses allow for easy adjustment in the dark'Arrow Foot' shaped foot area lets your feet relax into their natural position3D insulated zip baffle minimises heat loss through the zipFull Length Two-Way Auto-Lock Zip with Zip Guard and Anti-catch pipingInternal pocket for small items'Omega' shaping: ergonomically shaped to fit around head and shoulders, positions zips and seams in the lower section of the bag4-strap compression stuffsack for easy transportationInternal length: 205cm Internal foot width: 48cm External chest width: 80cm Internal chest width: 78cm