Best Trekking Pants of 2026

The Patagonia Quandary is the benchmark trekking trouser. The 94% nylon/6% spandex fabric is durable, quick-drying, and has enough stretch for unrestricted movement on scrambles and steep climbs. The articulated knees prevent the binding that plagues non-stretch trousers on steep terrain. At 282g they're among the lighter options in this guide.

The fit is well thought out: a low-profile waistband that works comfortably under a pack hip belt, two hand pockets, one secure zip pocket on the thigh, and a clean cut that doesn't look aggressively outdoorsy off the trail. The DWR treatment handles light rain effectively, though in sustained downpour you'll need waterproof over-trousers. Patagonia's Fair Trade certified production and use of recycled nylon are genuine sustainability credentials.

The Craghoppers NosiLife Adventure II is the convertible trekking trouser done right. The zip-off legs convert it from full-length trousers to shorts in 30 seconds — genuinely useful on the Annapurna Circuit where you can go from shorts weather to cold wind in a single afternoon. The NosiLife insect-repellent treatment is built into the fabric and effective for the life of the garment — relevant for trekking in tropical regions and at lower Himalayan elevations.

The fabric is lighter than the Patagonia and slightly less durable, but the versatility advantage is real for trekkers who cross significant temperature ranges. The zip-off seam is well-positioned — not so high that the shorts look awkward, not so low that the trousers look odd.

The Arc'teryx Gamma MX is a softshell trouser designed for mountain use — not casual hiking. The Fortius 2.0 softshell fabric is wind-resistant, water-resistant (handles light rain without soaking through immediately), and warmer than a standard trekking trouser. For above-treeline trekking in cold conditions — Thorong La crossing, Alpine routes in shoulder season, Scottish winter hillwalking — it's significantly better than a nylon trouser.

The trade-off is weight and packability: at 460g it's heavier than trail-specific trousers, and it's too warm for anything above 15°C. If you're crossing a high pass in cold conditions and want to avoid carrying separate over-trousers, the Gamma MX simplifies your system.

Montane is slightly less well known than Arc'teryx or Patagonia outside the UK, but their Terra Stretch Pants punch significantly above their price point. The four-way stretch fabric gives genuinely unrestricted movement — as good as the Patagonia in our flexibility tests — at a price typically £30–40 lower. The reinforced knees and seat add durability for trekkers who spend time on rocky scrambles.

The slim-to-regular fit is versatile across body types. Quick drying, good DWR, multiple pockets including a secure zip pocket. Our primary criticism is that the ankle adjusters are fiddly when worn inside boots — a minor issue but one that better designs solve.

For trekkers on a tight budget, Decathlon's own-brand Forclaz MT500 is a remarkable piece of kit. At under £40 it delivers stretch fabric, quick drying, a zip thigh pocket, and a clean cut that Decathlon's in-house design team has refined over several iterations. It won't last as many seasons as the Patagonia, the seams are less robust at high wear points, and the fabric has less inherent weather resistance.

But for a first trek, the Camino, or anyone who wants functional trekking trousers without spending £90, the MT500 is excellent value. Decathlon's returns policy is generous if you have fit issues.

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