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Cairnhope

Men's Thole 3L Overtrousers

Men's · See the women's version

Rated 4.7 out of 5 4.7 (109)

£220

3-layer mountain overtrousers with full side zips and crampon patches, rated to 28,000mm.

Colour: Black
Size Size guide

Fit: Regular. Fits over softshell trousers and a harness.

In stock online.

Free click and collect from all 128 shops, usually the next day.

  • Free delivery on orders over £50, next day for £6.95.
  • 60 days to return anything unused.
  • Water-repellent finish made without PFAS.

About this product

Thole overtrousers are made from the same Stormcairn 3L fabric as the Thole jacket, rated to 28,000mm with a PFAS-free polyethylene membrane. They weigh 430g in size M, and full-length side zips let you put them on over crampons in a wind without sitting down.

Cairnhope adds 80-denier crampon patches inside each ankle, an adjustable hem with a lace hook, loops for braces and a thigh pocket for a map. They're cut to fit over softshell trousers and a harness.

  • Two-way side zips from waist to ankle
  • 80D crampon patches inside each ankle
  • Lace hook and adjustable hem
  • Loops for braces
  • Map-sized zipped thigh pocket

Specification

Waterproof rating28,000mm
Breathability25,000g/m²/24h
Construction3-layer
FabricStormcairn 3L, 40D recycled nylon
Weight430g (size M, regular leg)
Leg zipsFull length, two-way
Leg lengthsShort 76cm, Regular 81cm, Long 86cm
FitRegular, over softshell trousers
Product codeWL1043

Materials

Face fabric 100% recycled nylon. Membrane polyethylene. Backer 100% nylon tricot.

Care

Machine wash at 30°C with a technical cleaner, then tumble dry low to reactivate the water-repellent finish.

Reviews

4.7 out of 5

109 reviews

  • 5 star68
  • 4 star26
  • 3 star9
  • 2 star4
  • 1 star2

Reviews on this demo are invented, like everything else here.

  1. 5 out of 5

    On over crampons in a gale

    Got these on over crampons on the Cairn Lochan plateau in a whiteout without taking anything off. The lace hook stops them riding up. My last pair did five winters.

    Ross, Aviemore · 16 March 2026 · Bought size L regular, fits over softshells

  2. 4 out of 5

    Excellent, a bit long

    Bombproof on Great Gable in winter. The regular leg is long for me and the hem drags if I don't use the lace hook. Go short if you're under 5ft 9in.

    Mike, Keswick · 18 December 2025 · Bought size M regular, long in the leg