Nobody knows more about technical sleeping bags than Rab Carrington, the brand\'s founder and avid winter explorer. Although he\'s now retired, the expertise and craftsmanship of his premium sleeping bags lives on.The Alpine Pro 600XL is a superbly durable bag designed for cold, damp expeditions. It features Pertex Quantum Pro that repels outside moisture along with 650FP R.D.S Certified European Duck Down that has been treated with Nikwax\'s PFC-free hydrophobic treatment, significantly improving the performance of the down in damp conditions. Extra-long four season sleeping bagPertex Quantum Pro outer fabricLightweight Nylon Ripstop inner fabric650FP R.D.S Certified European Duck DownRab Fluorocarbon free Hydrophobic Down developed in conjunction with NikwaxMummy taper shapeProportionally designed differential cutTrapezoidal chamber design to eliminate cold spots¾ length YKK 5 coil main zip with full length baffleInternal stash pocketAnti snag bonded zip guardInternal 3D collar and hood drawcordTrapezoidal baffle chamber designAngled foot boxDry bag compression stuff sackCotton storage sackTemperature tested to new European standard: EN1357:2016Pack Size: 40 x 27cm/15.7 x 10.6 inchesZip side: left Weight: 1173gTemperature Limit: -10°CColour: Firecracker