The Cobra 600 is a lightweight, high-performance sleeping bag designed for trekkers and adventurous campers who need to move fast and pack light. Its Welded Box Wall construction keeps down evenly distributed from head to toe, providing consistent loft and warmth. Ergonomically shaped around the head and shoulders, it enhances heat retention, while the durable 20D 380T Nylon Outer Shell offers water resistance and long-lasting protection. Featuring Thermal Reverb technology, the Cobra 600 reflects your body heat back for maximum warmth and comfort on every adventure. Features 20D 380T Nylon Outer Shell Fabric - This fabric is durable and water resistant and protects the goose down from the elements, ensuring the sleeping bag performs at its best and is long-lasting Full Length Two-Way Auto-Lock Zip with Zip Guard - Used to seal in warmth or provide ventilation and can be used from inside the bag. Anti-catch piping helps to prevent the zip from snagging on the lining Independently Tested - Gives you reassurance that the temperature ratings are accurate ISO 23537-1:2016 Thermal Reverb - Our non-woven aluminised fabric layers are strategically placed to reflect heat back to the user to increase warmth and heat retention Internal Pocket - For convenient storage of small items such as mobile phones Mesh Storage Sack - Allows down to loft whilst in storage, increasing the lifespan of sleeping bag Engineered for warmth, Omega shaping is ergonomically tailored around the head and shoulders. Zips and seams are placed in the lower section of the bag to retain warmth more effectively 3D Insulated Zip Baffle - Minimises heat loss through the zip and the 3D shape allows the filling to loft and provide insulation Specification Season: 4 Season Weight: 1.1kg Shape: Mummy Suggested Usage Min: -12°C Comfort: -5°C Suggested Usage Max: 15°C Int Length: 205cm Int Chest Width: 75cm Int Foot Width: 48cm Ext Chest Width: 80cm Max User Height: 190cm Fill Type: 90/10 700FP Goose Down Limit: -12°C Extreme: -30°C Fabric: 20D 380T Nylon Ripstop Fabric