Criterion Quantum 350 Down Sleeping Bag

-6°C Comfort Limit, 350g of 870 Fill Power Down (EU Method)
Weighs 698g (excluding pouch)
Code: AW19638
  • £344.99
  • (FREE Delivery on orders over £15)
Item out of Stock | Usually dispatched within 24 hours

Criterion's Quantum bag provides a great combination of quality, warmth, weight and all at a fantastic price. The use of 870FP down and a Pertex Quantum shell provide reliable warmth and durability.

Criterion says:

The Criterion Quantum 350 is an extremely versatile lightweight sleeping bag and is our most popular bag. designed for 3 season trekking, summer Alpinism, ultralight hiking and adventure racing. With a comfort temperature rating of -6°C, this bag is suitable for camping during most of the year in the UK. Its weight is 695 grams, so it lightweight, helping to keep your pack weight down.

It is made using a Pertex Quantum (35gms/m²) ripstop shell filled with 350g of 870 FP Polish Goose down. Trapezoid construction eliminates cold spots enabling a comfortable night's sleep.

A DWR treatment of the shell helps protect the down from any dampness that may occur in your tent, from condensation or wet gear. When in its stuff sack, the pack size is 12 x 12 x 27 cm which take up hardly any room in your rucksack.

Suggested uses

The Criterion Quantum 350 sleeping bag can be used for a diverse range of activities including ultralight hiking, 3 season trekking, summer Alpinism, micro-adventures, endurance racing/adventure racing/mountain marathons, cycle touring. The night-time temperature when you are doing these activities could well be a few degrees below freezing. With a comfort temperature of -6°C the Criterion Quantum 350 will keep you warm without being too hot in milder weather. The weight of 695 grams enables the sleeping bag to be carried comfortably in your rucksack.

Criterion's Quantum 350 Down Sleeping Bag works well year-round in the UK. With 350g of really good quality 870FP down you are getting a really good level of warmth that will easily cope with most conditions outside of winter. The lighter weight Pertex Quantum fabric is still durable but is focussed on cutting weight for more experienced backpackers. Weighing under 700g for a -6°C comfort limit and the performance is as good as you would hope. This has quickly become one of my sleeping bags of choice for any three season trip in the UK.

The bag is impressively lightweight for this temperature rating and it packs down really well too. It has all the features you'd expect on a more expensive bag such as an insulated zip and neck baffles, anti-snag zipper and the usual internal pocket. The hood provides good coverage and the drawcord can be used with one hand. At this low weight and with the quality materials used this bag provides amazing value for money.

- Reviewed by Ultralight Outdoor Gear

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Help and advice:Choosing a sleeping bag advice
 EN 13537 rating for sleeping bags explained
 Sleeping bag shape and sizes advice
 Sleeping Bag features Page 1
 All about down filling in sleeping bags
  • Full-length YKK two-way zip with zip together compatibility (even different models)
  • Insulated and integrated Zip and Neck Baffle
  • Cowl hood and 1 hand operated drawcord
  • Inside pocket & hanging loops
  • Compact fully-featured stuff sack
  • Mesh storage bag

There is a Right Zip version of this sleeping bag. Please contact us to find out more and for availability of these bags here.

  • Comfort temperature: -6°C
  • Temperature rating confirmed by independent lab testing at Leeds University
  • Weight of bag: 698g (excludes storage bags)
  • Packs size: 12 x 12 x 27 cm
  • Length: 217cm
  • Shoulders width: 75cm
  • Foot width: 50cm
  • Max User Height: 6' 1" (185cm)

Materials & Construction

  • 350g of 96:4 RDS/Downpass Ethical Polish Goose Down insulation with 870 fill power
  • Pertex Ripstop Quantum Shell -35gms/m², with DWR treatment
  • Trapezoid construction
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