Criterion Quantum Lightweight Sleeping Bags
Our Quantum range of sleeping bags combine our lightest Pertex fabric with 850FP ethical polish goose down into a combination that offers luxurious soft feel sleeping solution with extremely high warmth to weight ratios. Criterion Quantum down sleeping bags are ideal for fast and light users who want lightweight small pack sizes but do not want to compromise on comfort or quality. Each Quantum bag is available in a regular (185cm) and long versions (198cm).
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Criterion Quantum 200 Down Sleeping Bag
£280.00 2 Season, 3 Season0°c530g This product has multiple variants. The options may be chosen on the product page -
Criterion Quantum 200 Long Down Sleeping Bag
£300.00 2 Season, 3 Season0°c585g This product has multiple variants. The options may be chosen on the product page -
Sale!
Criterion Quantum 350 Down Sleeping Bag
£315.00Original price was: £315.00.£305.00Current price is: £305.00. 3 Season, 4 Season-6°c695g This product has multiple variants. The options may be chosen on the product page -
Criterion Quantum 350 Long Down Sleeping Bag
£335.00 3 Season, 4 Season-6°c695g This product has multiple variants. The options may be chosen on the product page -
Criterion Quantum 450 Down Sleeping Bag
£350.00 3 Season, 4 Season-10°c800g This product has multiple variants. The options may be chosen on the product page -
Criterion Quantum 450 Long Down Sleeping Bag
£360.00 3 Season, 4 Season-10°c860g This product has multiple variants. The options may be chosen on the product page
Criterion Quantum Range Features

Fast & Light, Race Ready
Designed to be fast and light and provide lots of insulation. The Quantum range are Ideal for the world’s biggest adventure races and mountain marathons.

850FP Ethical Goose Down
Fillled with RDS & Downpass certified 850 fill power ethically sourced polish white goose down with a down to feather ratio of 95:5.

Pertex Quantum 35 Shell
A Pertex Quantum 35g/m² inner and outer shell gives a touch of luxury with a soft silky feel. This lightweight branded ripstop nylon fabric is also extremely lightweight and durable.
Other Criterion Quantum Features
- Top Baffle Construction – Quantum 350 and 450 down sleeping bags have trapezoid baffle upper construction. The Quantum 200 uses a boxwall baffle upper construction due to the amount of down in the bag.
- Differential Fill and Cut – More down is placed in the top of the bag rather than the base. As your body heat rises extra down in the top of the bag ensures better insulation than if all the down was split equally. The down on the base of the bag traps some body heat and combined with a good sleeping mattress acts as a barrier, preventing heat being lost to the cooler ground. In our Quantum range of bags 60% of the down is in the top of the bag with 40% in the base.
- Trapezium Footbox – Trapezium Boxfoot – A trapezium is a four side regular shape but unlike a rectangle it only has one pair of parallel sides rather than two. Our boxfoots are wider at the base and taper to be slightly narrower at the top of the bag. This helps to suit all feet types and sleeping styles.
- Cowl hood – A spacious hood with one-hand-operated drawcord and plenty of room to turn you head.
- Integrated anti-snag zip baffle with neck warmer – A down filled baffle runs the length of the zip in Quantum sleeping bags at the top of a 90° turn makes the baffle into a neck warmer. As the baffle is open down can be moved up and down to suit your needs.
- Full length YKK zip – A two-way YKK zip runs the full length of the bag. This allows venting from both the head and foot of the bag. All of our bags have a Velcro neck retainer so the bag can be closed even with the zip open.
- Choice of zip sides – Our Quantum range is available with zips on both the left and right hand sides. Left and right handed zip models can be zipped together if required. All of our sleeping bags (with the exception of the Expedition range) can be zipped together with bags of different ranges.
- Inside pocket – A functional inside pocket allows the safe storage of valuables such as a wallet or phone.
- Hanging loops – Two hanging loops are fitted to the boxfoot of the bag which allows storage on a coat hanger or airing on a washing line.
- Stuff Sack and Mesh Storage Sack Included – All of our sleeping bags are supplied with a size-related stuff sack for use outdoors and a breathable, mesh storage bag for use at home if needed. We also offer a range of optional roll top dry bags for use as stuff sacks.