The Winter Lite is designed to keep you warm on multiday journeys in conditions both alpine and extreme. The bags are available in three temperature ratings, -12, -16 and -20°C (ISO 23537.1 limit of comfort), and two sizes: regular and large. The shell is made from Pertex Quantum Pro, a fabric that is water- and wind-resistant and highly breathable, giving amazing weather protection and moisture management. The generous mummy shape is both comfortable and thermally efficient, while the vertical baffle system consists of strategically placed vertical-horizontal-vertical baffles, ensuring maximum warmth for weight. Winter Lite bags are finished with full-length zips so you can still get your feet out, with #5 YKK locking zips with anti-snag sliders used.

  • Generous mummy shape maximises thermally efficiency without restricting movement or comfort
  • Box-wall baffles give maximum thermal efficiency
  • Vertical-horizontal-vertical baffling blocks the migration of down, keeping it trapped where you need it most
  • Differentially cut baffles promote full and complete lofting of down
  • Elasticated horizontal baffles reduce down migration and ensure warmth stays trapped against the body, minimising unintended venting
  • Large foot-box reduces down compression while giving enough height for your feet and space to wriggle your toes
  • The contoured hood encloses your head, cinching tight while leaving enough space for your nose and mouth
  • The elasticised 3D neck muff effectively traps warmth around the neck and shoulders
  • Full-length side zip from hood to ankle: a YKK #5 with locking slider and innovative, anti-snag cover
  • Selecting a zip side is easy: when lying in a sleeping bag, a left-hand zip (LH) is on your left side
  • Joined at the zip: full-length zips allow models with compatible left and right zips to be zipped together
  • 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 is used to make a durable, well-sealed sleeping bag
  • Hang loops on the foot-box allow you to hang, dry and store your sleeping bag easily


  • Shell Fabric: Pertex Quantum Pro (formerly called Pertex Endurance)
  • Lining Fabric: 10 denier Vapour Vent V2. Downproof by construction, highly breathable, with C0, environmentally-friendly water-repellent treatment (DWR)
  • Down Specifications: 700-750 or 800-850 loft, both tested by the IDFL. DWR water repellency
  • Zip Specifications: YKK. Full-length side zip. Small available in RH or LH; Regular available with LH. Toggle glows in the dark
  • Intended Use: Alpine
  • Season Rating: Four Season
  • Temperature Rating: Cold Sleepers & Women: -11C / Warm Sleepers & Men: -20C

Packed Dimensions:

  • Small: 22cm x 27cm (800-850) / 22cm x 28cm (700-750)
  • Regular: 22cm x 27cm (800-850) / 22cm x 28cm (700-750)

Dimensions (user height / shoulder width):

  • Small: 183cm / 155cm
  • Regular: 187cm / 160cm


  • Small: 1396g (800-850) / 1515g (700-750)
  • Regular: 1474g (800-850) / 1601g (700-750)