Running shoe buying guide: cushioning, drop and fit

Running shoe listings are full of terms such as stack height, heel-to-toe drop and carbon plates. These describe how a shoe is built, and they are useful for narrowing down options — but the most important factor is how a shoe fits and feels on your feet. This guide explains what the specifications mean, how to compare shoes for the running you do and what to check before you buy. It is general product information, not medical or coaching advice.

Start with where and how you run

Road shoes

Designed for pavements, tracks and smooth paths. They have smoother outsoles and are usually lighter than trail shoes.

Trail shoes

Designed for mud, gravel and uneven ground. Look for deeper lugs on the outsole for grip, a tougher upper and sometimes a rock plate or protective toe cap. Some are waterproof, which keeps water out but can also keep heat in.

Everyday, long-run and race shoes

Many brands group road shoes by purpose. "Daily trainers" are general-purpose shoes for most runs. "Max cushion" shoes have thicker midsoles and are often marketed for long, easy runs. "Race" or "tempo" shoes are lighter and may include a stiff plate. Many runners own more than one pair for different sessions, but one versatile pair is enough to start.

The specs that matter

Cushioning and stack height

Stack height is the thickness of material between your foot and the ground, usually quoted in millimetres at the heel and the forefoot. A higher stack generally means more cushioning underfoot. Brands describe cushioning differently, so compare stack heights rather than marketing names.

Heel-to-toe drop

Drop is the difference between the heel and forefoot stack heights, in millimetres. Traditional running shoes often have a drop of around 8–12 mm; lower-drop shoes are under about 6 mm and zero-drop shoes have the heel and forefoot at the same height. Drop changes how a shoe feels. If you are used to one drop, a large change can feel very different, so many runners change gradually.

Weight

Listed in grams, usually for one shoe in a specified size (often a UK men's 8 or 9). Lighter shoes feel quicker; heavier shoes often have more cushioning or more durable materials. Check which size the brand used for the figure before comparing.

Stability or neutral

Brands label shoes as "neutral" or "stability". Stability shoes include design features intended to guide the foot, such as firmer foam on one side or a wider base. Which suits you is a personal choice. If you have a question about your feet or running, speak to a qualified professional.

Plates

Some shoes include a carbon-fibre or plastic plate in the midsole, which makes the shoe stiffer. Plated shoes are usually aimed at faster running and racing and are often more expensive and less durable than daily trainers.

Fit: the most important factor

• Size. Sizing differs between brands and even between models from the same brand. Check each brand's size chart.
• Width. Some models come in wide or narrow fittings.
• Toe box. Look for room to spread your toes.
• Heel hold. Your heel should feel secure without slipping.
• Try them at the time of day you usually run and with the socks you run in.

Because fit is so personal, the returns policy matters. Many retailers accept returns only if shoes are unworn outdoors, so try them indoors first.

Durability and value

Midsole foams and outsole rubber wear over time. Brands do not publish a standard lifespan, so durability is hard to compare from specifications. Older colourways of the same model are often discounted, and previous versions of a shoe can be good value — compare the specifications to see what has changed.

Key specs explained

Questions to ask before you buy

1. Will I mostly run on roads, trails or a mix?
2. What drop and stack height am I used to?
3. Is this model available in my width?
4. Does the brand's sizing match the shoes I already own?
5. Can I return them if I have only tried them indoors?
6. Is an older colourway or previous version available for less?

Frequently asked questions

What does heel-to-toe drop mean?

It is the difference in height between the heel and the forefoot, in millimetres. It describes how the shoe is built and changes how it feels; it is not a measure of quality.

Do I need a stability shoe?

That depends on what feels comfortable for you. Brands label shoes as neutral or stability based on their design. If you have questions about your feet, speak to a qualified professional.

Why is the same shoe cheaper in another colour?

Retailers often discount individual colourways or sizes to clear stock. The specifications are usually identical, but check the model name and version number.

Are trail shoes fine on the road?

You can run on roads in trail shoes, but deep lugs can feel less smooth on hard surfaces and may wear faster. If you mix surfaces, a hybrid or "road-to-trail" shoe is a compromise.

Prices & links

HotWhatHow compares live prices from retailers as they are connected to the site. When offers are available, we rank them by the total landed price — the item price plus standard delivery — and show when each price was last checked. Prices often differ by colour and size, so check the exact option. Some retailer links are affiliate links; we may earn a commission, which never changes which offer we label as the cheapest. This guide is based on manufacturer specifications and general product information, not on our own use of the products, and it is not medical advice.