N/Q

Crux Protium 125 Down Liner Sleeping Bag

+12°C Comfort Limit, 125g of 925+ Fill Power Down (US Method)
Weighs 320g (excluding stuff sack)
Code: SS18275
  • £274.99
  • (FREE UK & EU Delivery)
+ In Stock Now | Usually dispatched within 24 hours
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Crux's Protium 125 Down Liner Sleeping Bag has some specific design features that pair it perfectly with the Crux Torpedo sleeping bags. As always Crux are using incredibly high quality down in this sleeping bag to create high-performing products with minimal weights.

Crux says:

The Protium is a liner bag designed to connect to the inside of the Torpedo sleeping bags in order to boost the temperature performance by approximately 3-5°C. The Protium is the lightest and most basic style in the radioactive range.

Crux's Protium 125 Down Liner Sleeping Bag has some specific design features that pair it perfectly with the Crux Torpedo sleeping bags, such as the toggles that fasten it to a Torpedo bag. These marry up with webbing loops inside the Torpedo bags and no others. However, there's nothing stopping you using this with a different model of sleeping bag, it's just purpose-built for the Torpedo.

As a standalone bag we've looked at the specs and compared it to other bags out there and, whilst it hasn't been tested in a lab to the EN standard, we reckon its comfort limit would be around +12°C.

As always Crux/Lightwave are using incredibly high quality down in this sleeping bag to create high-performing products with minimal weights. However, this does make the bag a bit pricier.

- Reviewed by Ultralight Outdoor Gear

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
 Sleepin bag features page 2
 All about down filling in sleeping bags
  • Drawstring top closure
  • Side toggles to connect to Torpedo sleeping bags
  • Stitch through construction
ML
  • Weight: 320g (excludes stuff sack)
  • Internal length: 170cm
  • Shoulder width: 70cm
  • Foot box width: 44cm
  • Stuff sack size: 24 x 14cm
  • Fill: 125g of EU 850+ / US 925+ Polish white down
  • Weight: 334g (excludes stuff sack)
  • Internal length: 188cm
  • Shoulder width: 70cm
  • Foot box width: 44cm
  • Stuff sack size: 25 x 15cm
  • Fill: 125g of EU 850+ / US 925+ Polish white down
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