The Cocoon has one of the best warmth-to-weight ratios in One Planet's range, making it a popular choice for the lightweight adventurer. The sumptuous, highly breathable 10-denier Vapour Vent is used as both inner and outer fabric; it’s a real weight saver, as is the body-hugging mummy shape. Your down won’t be going anywhere thanks to the combination of vertical chest baffles and our famous V-baffles, while the hood and neck closure stop your warmth escaping. The flexibility of a full-length zip helps your night time metamorphosis into a well-rested, happy little camper.

• Generous mummy shape maximises thermally efficiency without restricting movement or comfort
• Box-wall baffles give maximum thermal efficiency
• Vertical-V baffling system reduces down migration, keeping it trapped where you need it most
• Differentially cut baffles promote full and complete lofting of down
• Large foot-box reduces down compression while giving enough height for your feet and space to wriggle your toes</li
• The contoured full hood encloses your head, cinching tight while leaving enough space for your nose and mouth
• Hood and neck baffle integrate to prevent warmth escaping
• A draught tube along the zip insulates the zipper area, keeping warmth in
• Full-length side zip from hood to ankle: a YKK #5 with locking slider and innovative, anti-snag cover
• Hydrophobic Down repels water, helping down stay lofty in all conditions
• Your choice of down: ethically-sourced Hydrophobic Down in either 700-750 loft, or lighter (but just as warm) 800-850 loft
• Water-resistant thread used to make a durable, well-sealed sleeping bag