Heading out early spring or late autumn then the Mountain Equipment Helium GT 600 Sleeping Bag is a low weight and warm option with performance enough for conditions at those times of the year. 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 bulk or loss of thermal efficiency. Ethically sourced pure duck down provides the high-performance insulation while the highly technical recycled fabrics and innovative construction ensures this sleeping bag performs as it should. The super lightweight Helium™ 20 Fabric is a highly technical fabric that as well as being light and breathable is also tough while the Helium GT 600 features Mountain Equipment’s GT Fit offering improved comfort and maximised thermal efficiency. Mountain Equipment Helium GT 600 (Regular) Features: 100% Recycled HELIUM™ 20D Lightweight and Breathable Outer Shell Fabric PFC Free DWR Finish 100% Recycled Supersoft Lining 656g 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” -10C Supplied With Waterproof Roll-Top Stuff-Sack and Storage Cube Weight Approx 1090g