Why Are There Different Types of Trail Running Shoes?

There is no single type of trail. Conditions can range from dry, rocky ground and hard-packed paths to boggy, muddy terrain, wet rock, snow and technical mountain ground. Different trail shoes use different rubber compounds, tread patterns and levels of protection to suit these conditions.

Think of trail shoes as tools: the best choice depends on where and when you intend to run.

Trail Shoes vs Road Shoes

Road running shoes are designed primarily for smooth surfaces and repetitive foot strikes. They tend to have lightweight construction and harder rubber outsoles designed to withstand regular contact with tarmac.

Trail shoes need to cope with much more unpredictable foot placement. They therefore generally offer increased traction, stability and protection. Their outsoles often use softer, stickier rubber with deeper lugs to provide better grip, while protective features help shield your feet from rocks and other hazards.

Understanding Drop and Stack Height

Drop is the difference in height between the heel and toe of the shoe. Trail shoes commonly have a 4–6mm drop, although some go up to around 10mm. A higher drop can suit heel strikers and may be preferable for runners who experience calf or Achilles discomfort. Lower or zero-drop shoes can suit mid- or forefoot runners, but they may require a gradual transition as they place more demand on the feet and lower legs.

Stack height refers to the amount of cushioning between your foot and the ground. A higher stack provides more cushioning and can be beneficial over longer distances, while a lower stack generally provides greater stability and a more direct feel.

Use drop and stack height as guidelines rather than rules. Comfort and fit should always come first.

Getting the Right Fit

Trail shoes should feel secure without being tight. Allow enough room around your toes, particularly if you regularly run steep descents, as your feet can move forward inside the shoe.

Consider your foot shape, arch height and toe-box depth, and try shoes with the socks you normally run in. If you're preparing for an ultra, consider taking your running pack when trying shoes on.

Your feet can swell and spread during long-distance events, so some runners may need a larger pair for later stages of an ultra. In winter, leave additional room if you'll be wearing thicker socks or traction devices.

Looking After Your Trail Shoes

Grit and stones can quickly cause internal abrasion, while loose lacing can allow your foot to move and create friction. Ankle gaiters can help prevent mud and debris entering your shoes.

Clean your shoes after use and allow them to dry naturally. Avoid direct heat, which can damage adhesives and make materials stiff. Minimise road running in trail shoes, as softer outsole rubber can wear quickly on tarmac.

If you notice wear developing in the upper, shoe-repair patches can help extend the life of your footwear.

Should You Buy Waterproof Trail Shoes?

Waterproof trail shoes are available, but they aren't always the best option. Water can enter over the top of a low-cut shoe and become trapped inside, making the shoes slow to dry. Grit can also wear away at waterproof membranes.

For many runners, a quick-drying sock is a better choice for shorter runs, while waterproof socks can provide additional protection on longer outings.

Top Tips

• - Try shoes on properly before buying.
• - Choose the outsole and lug pattern to suit your usual terrain.
• - Always prioritise comfort and fit over technical specifications.
• - Carry spare laces on longer trail runs.
• - Clean and dry your shoes naturally after use.
• - Consider gaiters to keep grit and mud out.

The right trail running shoe should match your terrain, distance and running style while providing a secure, comfortable fit. If you're unsure which model is best, getting advice from experienced trail runners can help you find the right balance of grip, protection, cushioning and stability.