Sea to Summit Lightweight Compression Sack

Size: 5L
Color: Surf The Web
Sale price£21.90


Sea to Summit Lightweight Compression Sack... Space-saving, lightweight gear storage for organised packing.

Pack down your compressible, bulky gear for efficient packing. Updated fabric materials from 2023.


  • Compress contents down by as much as two thirds
  • Lightweight, bluesign® APPROVED traceable recycled 70D nylon main body fabric uses a non-PFC DWR finish
  • Side-release buckle compression straps for fast and easy access
  • Attached flip-top lid prevents straps tangling

Which size do I need?

  • 5 Litre: a layer, beanie, and gloves
  • 8 Litre: a puffy jacket & a compact sleeping bag
  • 13 Litre: Most three-season sleeping bags, including synthetics
  • 20 Litre: Most four-season sleeping bags (except synthetics)
  • 35 Litre: Sea to Summit sleeping bag and your extra layers, or a less-technical cold weather sleeping bag 


  • 5L: 29.6 x 15.2 x 15.2cm
  • 8L: 35.5 x 18.1 x 18.1cm
  • 13L: 43.3 x 20.5 x 20.5cm
  • 20L: 47.5 x 24 x 24cm
  • 35L: 57.8 x 28.8 x 28.8cm


  • 5L: 68g
  • 8L: 86g
  • 13L: 112
  • 20L: 134g
  • 35L: 167g

Customer Reviews

Based on 1 review
Alistair Hepburn
Compression sack

Overall good product but regrettably one of the tensioning straps is twisted (and sown in such a way it can’t be ‘untwisted’ ) - making it harder to tension - but not sufficiently to return.

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