With the Helium GT 250 from Mountain Equipment weighing less than most bottles of water and packing down equally small it is definitely the ideal sleeping bag for serious weight conscious backpackers and trekkers who travel in warmer weather. The Helium GT Range is aimed at serious outdoor enthusiasts looking for a slightly roomier sleeping bag that allows for more versatile sleep positions and comfort without adding unnecessary weight or loss of thermal efficiency. The very latest recycled HELIUM™ 20D fabric technologies and traditional tried and tested pure duck down insulation combine to make the Mountain Equipment Helium GT 250 a very high-performance sleeping bag. The technical construction throughout from hood to foot-box ensures the maximum thermal efficiency and comfort for good night’s sleep down to 1C. Mountain Equipment Helium GT 250 (Regular) Features: 100% Recycled HELIUM™ 20D Lightweight and Breathable Outer Shell Fabric PFC Free DWR Finish 100% Recycled Supersoft Lining 289g 90-10 Pure Duck Down With 700 Minimum Fill Power GT Fit is Roomy and Comfortable Slanted Box-Wall Baffles Throughout Mid-Level Side Seams 5 Baffle Anatomically Shaped Hood 4 Baffle Anatomically Shaped and Offset Foot-Box 140cm Zip Full Length Gemini™ Zip Baffle and Integrated Collar with Lode Lock™ Closure Maximum User Height 185cm ME “Good Night Sleep” 1C Supplied With Waterproof Roll-Top Stuff-Sack and Storage Cube Weight Approx 690g