Want to work in the outdoor industry? We're hiring! Find out more on our dedicated careers site
Open Now - Book Online or Visit Us
Trustpilot 9.8 / 10
Free UK Delivery* on Orders over £50

Criterion Criterion Ultralight 350

Comfort Limit -3°C. 765g
Stock Code: 202950
  • £225.00
  • (FREE UK Delivery)
Item out of Stock | In stock items available to dispatch within 24 hours or to Purchase In Store

The Criterion Ultralight 350 is an extremely light down sleeping bag, designed for minimalists, ultralight hikers and adventure racers. With a limit of comfort temperature rating of -3°C, this is a bag for the extended summer use when you know that temperatures will dip just below zero in the small hours. Its weight is a mere 765 grams, so it will add hardly any weight to your rucksack.

It is made using a Pertex Microlight ripstop shell filled with 350g of 700 Fill Power Polish Goose down. Trapeziod construction eliminate cold spots enabling a comfortable nights sleep. Zip baffles keep out drafts, whilst 2 way YKK zips enable venting if you do start to over heat.

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 of 12 x 12 x 27 cm which is absolutely tiny. Since it takes up hardly any room you will be able to use a smaller rucksack.

Click here for our tips on how to select a sleeping bag for your next adventure.
Click here for our tips on how to store, clean and care for your sleeping bag.

Features Criterion Ultralight 200 Sleeping Bag:

  • 350gms of 92:8 Polish Goose Down insulation with 700 fill power
  • Fill Volume: 8167 cubic inches
  • Weighs 765g
  • Overall length: 217cm - recommended max. user 185cm / 6' 1"
  • Packs down to 12 x 12 x 27 cm
  • Top side construction: Trapezoid Boxwall
  • Comfort Limit Temp. = -3°C
  • Temperature rating confirmed by independent lab testing at Leeds University
  • Full length 2-way YKK Zip (LH and RH mate to form a double)
  • Cowl hood with one hand operation
  • Inside pocket
  • Foot hanging loops
  • Supplied with stuff sac and mesh storage bag


Due to COVID-19 Coronvirus we have made some changes to our despatch processes to minimise risk to our teams. As a result we have temporarily removed some delivery options and orders may take slightly longer than usual, we will aim to despatch any orders within 2-3 days and we will update you as soon as your items are despatched.

1. Standard Delivery (3 to 5 Days) £4.50 (FREE when you spend £50 or more)
2. Priority DPD Local Next Working Day from £6.50 (£2.99 when you spend £75 or more)
3. Royal Mail 24 (1-3 Days) £4.50 (£1.99 when you spend £75)
5. Royal Mail Saturday Delivery £8.99
6. International Shipping Rates (Click Here)

For the exact delivery cost simply add any desired items in to the Shopping Basket and select [See More Delivery Options] below the Sub Total. Rates above apply to UK Mainland, rates for shipping heavy or bulky items to the Scottish Highland areas, or locations of the UK Mainland, may be higher.

View our full UK Delivery or Returns/Exchanges information