The OESB (Outdoor Education Sleeping Bag) Synthetic is a great bag for general use: it’s robust, easy to look after and warm even when damp. It’s available in two temperature ratings (ISO 23537.1 limit of comfort -5 and -10°C) and small, regular and large sizes. The generous mummy shape makes it both comfortable and thermally efficient, while the squared foot-box is complemented by a full-length YKK #5 locking zip with anti-snag cover. (This zip allows it to be easily opened from the ankle for effective venting.) Made from robust Vapour Vent V2 fabric, it’s filled with multiple layers of thermally-bonded Thermolink to maximise performance while minimising size and weight.

  • Generous mummy shape maximises thermal efficiency without restricting movement or comfort
  • Thermolink insulation uses hollow-core fibres and thermal bonding for excellent warmth-to-weight and durability
  • Large, square foot-box reduces compression of the fill while giving enough height for your feet and space for wiggling your toes
  • Contoured hood cinches tight to trap warmth around your head while leaving space for the nose and mouth
  • The elasticised 3D neck muff 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
  • Built-in pillow slip
  • Hang loops on the foot-box allow you to easily hang, dry and store your sleeping bag
  • Storage bag not included


  • Shell Fabric: 20 denier Vapour Vent V2. Highly breathable, with C0, environmentally-friendly water repellent treatment
  • Lining Fabric: 20 denier Vapour Vent V2. Highly breathable, with C0, environmentally-friendly water-repellent treatment (DWR)
  • Fill Specifications: Thermolink in multiple, thermally-bonded layers
  • Zip Specifications: YKK. full-length zip with separate ankle to foot zip
  • Intended Use: Bushwalking / Camping / Travel / Outdoor Education
  • Season Rating: Three Season or Four Season
  • Temperature Rating: Cold Sleepers & Women: 1C / Warm Sleepers & Men: -5C

Packed Dimensions:

  • Small: 32cm x 20cm
  • Regular: 32cm x 22cm
  • Large: 34cm x 28cm

Dimensions (user height / shoulder width):

  • Small: 175cm / 140cm
  • Regular: 187cm / 160cm
  • Large: 195cm / 175cm


  • Small: 1250g
  • Regular: 1300g
  • Large: 1460g