Criterion Quantum 450 down sleeping bag


The Quantum 450 is warmest of the Criterion ultralight sleeping bags. It’s a genuine UK 4 season bag and with a comfort temperature rating of -10°C, it should keep even the coldest of sleepers warm year round. It’s made using a Pertex Quantum (35gms/m²) ripstop shell filled with 450g of the highest quality 850 FP Polish goose down and the entire bag weighs only 800g. Trapezoid construction eliminates cold spots and promotes loft, while an integrated zip and neck baffle keeps the drafts out and body heat in. A DWR coated shell helps protect the down from condensation or the occasional drip.

NB: Sent via Royal Mail Special Delivery in UK. Contact us for overseas delivery costs on this item.

Click here to see a comparison table of the full Criterion sleeping bag range.



  • 450gms of 95:5 Polish goose down insulation with 850 fill power – collected in accordance with DOWNPASS ethical standards.
  • Fill volume: 12750 cubic inches.
  • Weighs 800g.
  • Packs down to 15 x 15 x 30 cm.
  • Topside construction: trapezoid.
  • Comfort temp: -10°C.
  • Temperature rating confirmed by independent lab testing at Leeds University.
  • Insulated and integrated zip and neck baffle.
  • Length: 217cm.
  • Width shoulders / foot (cm): 75/50.
  • Max user height 6′ 1″ (185cm).
  • Full-length YKK two-way zip with zip together compatibility (even different models).
  • Anti-snagging, insulated zip baffle.
  • Cowl hood and 1 hand operated drawcord.
  • Inside pocket & hanging loops.
  • Compact fully-featured stuff sack.
  • Mesh storage bag.


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