Sea to Summit Ultra-Sil Compression Sack (2023)

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Size: 5L
Color: High Rise
Sale price£25.10 Regular price£27.90


The Sea to Summit Ultra-Sil® Compression Sack is an ultra light weight compression sack that helps you get the most you possibly can into your pack.

Now available in more sizes and new colours. The size range update enhances the range with two extra small sizes ideal for compressing and storing down jackets and other clothing.


    • Compress contents down by as much as two thirds
    • Water-resistant, bluesign® APPROVED Ultra-Sil 30D nylon fabric with a C0 non-PFC DWR finish
    • Side-release buckle compression straps for fast and easy access
    • Attached flip-top lid prevents straps tangling
    • Bar tack reinforced stress points
    • Pull handle on the bottom
    • Slippery finish for easy packing

    Which size do you 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: 15.2 x 15.2 x 29.6 cm
      • 8L: 18.1 x 18.1 x 35.5 cm
      • 13L: 20.5 x 20.5 x 43.3 cm
      • 20L: 24 x 24 x 47.5 cm
      • 35L: 28.8 x 28.8 x 57.8 cm


      • 5L : 53g
      • 8L: 64g
      • 13L: 82g
      • 20L: 96g
      • 35L: 118g

        Base Camp Food are an official UK Retailer for Sea to Summit. 

        To view our complete Sea to Summit range, click here.

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