Walking Sandals for UK Trails

How to choose walking sandals for UK trails

A proper walking sandal needs three things: a lugged rubber outsole that grips on wet ground, a contoured footbed with real arch support, and straps that adjust at the heel, instep and forefoot. If a sandal is missing any of these, it is a beach sandal with ambitions, and it will let you down on the first steep descent.

UK conditions add their own demands. Trails here are rarely dry for long, so wet grip matters more than it does in the Mediterranean, and quick-drying synthetic webbing usually beats leather for anything beyond easy paths. Models in the class of the Teva Terra Fi, Keen Newport H2 and Merrell Kahuna have dominated this category for years because they get these fundamentals right.

Weight is the final check. Most capable pairs come in around 500–850 g, roughly half the weight of leather boots, which is a large part of why sandals feel so quick and easy on summer trails.

Closed-toe vs open-toe hiking sandals

Closed-toe sandals protect your toes; open-toe sandals keep feet cooler and dry faster. That is the whole trade-off, and which side of it you land on should be decided by where you walk most often.

A closed toe, in the style Keen made famous, suits rocky ground, riverbeds where you cannot see what your foot will meet, and anyone who has learned what a flint does to an exposed toe. The costs are extra warmth, slower drying and a talent for collecting grit that then needs shaking out.

An open toe suits well-surfaced paths, hot weather and travel, and it clears debris and water almost instantly. On a July coast path most walkers are better served by an open design; on a bouldery river walk, closed wins.

When walking sandals work on UK trails, and when they do not

Walking sandals work well on dry summer trails, coast paths, riverside routes, towpaths and low-level day walks; they are the wrong tool for scree, scrambles, cold weather and long days over rough ground. Treat them as seasonal kit, whatever the marketing suggests.

The limits are practical. Scree and sharp rock find the gaps between straps. Scrambling needs the edge and toe protection of a stiff shoe. Below about 10°C exposed feet lose warmth quickly, and once the ground is cold and wet the case for sandals collapses. On rough routes beyond 15 km or so, grit ingress and strap rub compound in a way they never do on a two-hour walk.

None of that diminishes what they do well. From May to September, on established paths, a good walking sandal is often the most comfortable thing you can put on your feet.

How walking sandals should fit

A walking sandal fits correctly when your foot stays still on the footbed during a steep descent, with no forward slide and no strap pressure anywhere. Everything else is secondary.

Set the heel strap first, because it anchors the whole fit, then work forward. Straps should be snug rather than tight; pressure that is barely noticeable in the shop becomes a hot spot at 12 km. Test on stairs or a slope before committing, and fit sandals in the afternoon, when feet are at their largest. Feet also swell in heat, which is exactly when sandals get worn.

Footbed length, overhang and half sizes

Your toes and heel should sit fully inside the footbed, with around 5 mm of spare deck ahead of your longest toe. Any part of the foot overhanging the edge will take the abrasion the sole was meant to absorb.

Many walking sandals come in whole sizes only. If you are between sizes, take the larger and use the straps to snug the fit; a footbed that runs slightly long is workable, one that leaves your toes at the edge is not. Brand lasts vary too: Keen is famously roomy across the forefoot but tends to run slightly short, so many walkers go up half a size, while Teva sits closer to standard.

River crossings, wet rock and drainage

For river crossings, walking sandals are hard to beat: they drain instantly, protect the sole from unseen rock and stay attached in moving water, where flip flops and slides are lost within seconds.

Grip on wet rock comes down to rubber compound and tread, not strap count. Softer, stickier compounds, some borrowed from approach shoes, hold well on wet stone; harder rubber lasts longer but skates. No sandal grips algae-covered rock reliably, so treat green-slicked stones as ice regardless of what is on your feet.

For frequent wet use, choose synthetic webbing over leather. Leather straps absorb water, stretch and dry slowly, then stiffen; polyester webbing sheds water and dries quickly on the move. Rinse everything in fresh water after any saltwater outing.

Socks with walking sandals

Socks with walking sandals are practical, whatever anyone thinks of the look. A thin merino sock extends the sandal season by several weeks at each end, cushions straps against new-sandal rub, and manages the sweat that would otherwise sit against synthetic webbing.

The technique has limits. Wet socks defeat the drainage that makes sandals good in the first place, so remove them before crossings or carry a dry spare. Grit trapped under a sock also abrades skin before you feel it. For open-toe designs, toe socks solve the problem of a standard sock seam sitting across the toes.

Recovery and camp sandals: a different class of footwear

Recovery and camp sandals are a separate class, built for after the walk rather than for it. The category runs from cork-footbed classics in the Birkenstock mould to deeply cushioned foam sliders such as Hoka's Ora recovery slides, and both do one job well: they let hot, swollen post-hike feet spread, air and recover after hours in boots.

They are not trail kit and should not be bought as if they were. Most have no heel strap, soft midsoles that roll on uneven ground, and outsoles with little useful grip on mud or wet grass. What they are is one of the cheapest comfort upgrades in walking: a pair left in the car or clipped to a pack transforms the end of a long day and the drive home.

For easy days out, on towpaths, around town or at the campsite, a supportive cork or contoured foam footbed is comfortable for miles of gentle walking. The distinction is ground, not distance: pavement and firm track are fine, open country is not.

What to spend on walking sandals in the UK

Expect to pay £60–£110 for a walking sandal that will last several summers. That bracket covers the established models from Teva, Keen, Merrell and Columbia, and it is where the reliable combination of grippy outsole, supportive footbed and durable webbing lives.

Below £40, footbeds are usually flat foam and outsoles hard, slippery rubber; these are fine for the beach and poor value for walking, because they get replaced within a season. Above £110 you are paying for speciality: sticky climbing-derived rubber, premium leather, or long-distance designs. Recovery sandals cost less, with capable foam options at £25–£60, though cork classics can cost as much as a walking sandal.

Care, cleaning and odour control

Rinse walking sandals in fresh water after muddy, sandy or salty walks, then dry them away from direct heat. Sand works into webbing channels and footbed texture, where it acts as an abrasive on both the sandal and your skin, while salt degrades adhesives and stiffens straps.

Odour is bacterial and treatable. Scrub the footbed with warm water, mild soap and an old brush, then dry completely in moving air; a paste of bicarbonate of soda left overnight handles stubborn cases. A machine wash is tempting for synthetic straps, but check the care guidance first: Teva, for one, recommends hand washing and warns that machine washing can cause lasting damage. Leather footbeds get soap and water only. Store sandals dry, not in a boot bag in the car over winter.