How to Choose Hiking Socks for UK Hiking and DofE Expeditions
The right hiking sock for UK trails is a well-fitting merino wool blend, ideally 60% merino or above, with a reinforced heel and toe, a flat seam and no cotton anywhere in the mix. Merino stays warm even when damp, resists odour on multi-day trips and, paired with boots that already fit well, does more to prevent blisters than any other single piece of kit. Waterproof socks are a specialist add-on for genuinely wet, cold days such as river crossings or boggy DofE routes, not a replacement for decent boots. Below we cover how socks differ from everyday wear, when to reach for waterproof over merino, how many pairs to pack for an expedition and how to get the fit right.
What makes a hiking sock different from an everyday sock?
A normal cotton sock holds sweat against your skin, goes soft and heavy when wet, and slides inside a boot, which is exactly the combination that causes blisters. A proper hiking sock is built to do the opposite: it wicks moisture away from the foot, keeps its shape and cushioning when damp, and adds targeted padding at the heel and ball of the foot where boots create the most friction.
Look for three things on the label: fibre content (merino wool or a wool blend, not cotton), a reinforced heel and toe, and some form of arch support or compression band to stop the sock bunching inside the boot. HikeWare's own Premium Merino Wool Socks tick all three, with 360-degree arch support and a padded sole built in.
Merino wool or waterproof: which is right for UK trails?
For most UK day walks and three-season trips, a merino wool blend sock is the better everyday choice. It manages sweat, keeps insulating when wet, and is comfortable over long distances. Waterproof socks use a membrane sandwiched between an outer shell and a merino lining, which makes them fully watertight but also warmer and less breathable, so they suit specific conditions rather than everyday wear.
| Feature | Merino wool sock | Waterproof sock (Sealskinz) |
|---|---|---|
| Best for | Everyday walking, DofE expeditions, multi-day trips | River crossings, boggy ground, worn-in or leaky boots |
| Breathability | High | Lower, due to the waterproof membrane |
| Warmth when wet | Retains insulation | Keeps feet dry rather than warm |
| Odour resistance | Naturally antimicrobial | Merino-lined interior, also antimicrobial |
| Typical price | From £6.99 | £30 to £35 |
Research into merino's moisture-handling backs this up: as Alpinetrek's guide to merino wool explains, the fibre can absorb a large share of its own weight in moisture vapour while still feeling dry against the skin, which is why it keeps insulating on damp UK trails where synthetics and cotton fail.
Merino wool blend with 360-degree arch support, a padded sole and breathable mesh panels, built for long days on the trail.
How many pairs of socks do you need for a DofE expedition?
Pack one pair per day plus one spare, and keep the spare pair sealed in a dry bag as an emergency change if your feet get soaked. Dry, clean socks each morning matter more for blister prevention than almost any other packing decision on a multi-day expedition. Rotate socks so each pair gets a full day to air out before it is worn again, and wash and dry them at camp where you can rather than carrying a fresh pair for every single day.
If you are putting together the rest of your kit list, our DofE expedition kit collection covers the other essentials, from rucksacks to sleeping bags, alongside the socks above.
Do sock liners actually stop blisters?
Liner socks can help, but they are not a substitute for boots that fit properly. According to REI's guide to blister prevention, the most reliable defence is good-fitting footwear, a thin liner sock worn under your hiking sock, and treating any hot spot the moment you feel it with a blister plaster or tape rather than waiting until it has already formed. A thin liner adds a second surface for friction to happen against instead of your skin, and it wicks sweat away from the foot faster than a single sock alone.
If you already get hot spots on long walks, try a thin liner under your merino socks before you assume you need a completely different sock. Fit and footwear choice usually matter more than the liner itself.
When are waterproof socks worth it in the UK?
Waterproof socks earn their place when you know you are heading into standing water, a river crossing, or genuinely saturated bog, or when your boots are past their best and starting to let water in. They are not meant to replace a decent pair of waterproof boots for everyday walking, since the membrane reduces breathability compared with a standard merino sock. For UK conditions where the forecast is unreliable and ground can turn boggy without warning, many hikers keep a pair in the pack as a backup rather than wearing them as standard.
A 100% waterproof hydrophilic membrane between a durable outer and a merino wool interior, handmade in Norfolk.
Ankle-length waterproof sock with the same Aquasealz membrane and merino lining, suited to high-intensity days and shorter boots.
How do I get the right sock size and fit?
Fit matters as much as fabric. A sock that is too big will wrinkle inside the boot and create friction; one that is too small will compress your toes and cut off circulation on long days. Always size socks to your foot, not your shoe size on the box, and try them on with the boots you actually plan to wear, since boot volume varies between brands. A sock with a flat toe seam and a snug (not tight) heel cup will move with your foot rather than against it, which is the difference that actually prevents blisters on a long walk.
Frequently asked questions
Can I wear cotton socks for hiking?
No. Cotton absorbs moisture and holds it against the skin, which softens the skin and makes blisters far more likely, and it loses all its warmth once wet. Stick to merino wool or a wool blend instead.
How often should I change hiking socks on a multi-day trip?
Change into a dry pair every day if you can. Merino resists odour well enough to be worn for a full day of walking, but starting each day with dry socks is one of the simplest ways to avoid blisters and cold feet.
Are merino wool socks warm enough for winter hiking in the UK?
Yes, for most UK winter conditions. Merino keeps insulating even when damp, which is exactly the scenario you get on a wet British winter trail. For genuinely waterlogged ground, pair merino socks with waterproof boots, or switch to a dedicated waterproof sock.
Do I need sock liners if I already wear merino wool socks?
Not always. Many hikers get on fine with merino alone. Liners are worth adding if you regularly get hot spots or blisters despite well-fitting boots, since they give friction a second surface to happen against instead of your skin.
What is the best sock length for DofE expeditions?
A mid-length or crew sock that sits above the boot cuff is the standard choice, since it stops the boot rubbing directly on the ankle. Ankle-length socks work for lower-cut boots or trail shoes, but check your boot height before choosing.
Sort your feet out before your next trail
Shop merino wool and waterproof hiking socks at HikeWare, alongside the rest of your DofE expedition kit.
Shop DofE expedition kit →Free UK delivery over £60, dispatched within 24 hours.
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