What Affects How Climbing Shoes Fit?

If you’re buying your first pair of climbing shoes, you’re probably wondering how should climbing shoes fit and why two pairs in the same size can feel so different on your feet. The honest answer is that fit isn’t just about the number on the tag. It changes based on the brand, the material, and the shape of the shoe, and once you know what moves those three things around, sizing gets a lot less confusing.

A good-fitting climbing shoe should feel snug all the way around with no dead space, especially at the toes and the heel. Your toes can be flat or slightly curled depending on the shoe, but you shouldn’t feel your foot sliding or swimming inside it. That’s the target. Getting there depends on the factors below.

Here are the main things that affect how your climbing shoes fit, plus a few tips to help you land on the best pair.

How should climbing shoes fit across different brands

Every brand fits a little differently, the same way street shoes do. Two shoes both marked size 9 can feel a full size apart once they’re on your feet, so I always tell people to try shoes on at a climbing shop before they buy. If you can’t get to a shop, at least know how your usual brand runs before you order.

• La Sportiva: climbers commonly report buying a smaller size than they’d wear in other climbing shoes and in street shoes.
• Madrock: climbers often go larger than they would with other brands and street shoes.
• Evolv: reportedly runs close to street shoe size.
• ClimbX: commonly made with leather, so they stretch over time. Even so, many climbers report they run true to street shoe size.
• Scarpa: commonly smaller than street shoe size.

Once you’ve got a snug fit dialed in, it helps to know exactly how tight is right before things start hurting. Our guide on how tight your climbing shoes should be walks through where the line sits between snug and painful.

Sizing with leather vs synthetic

Climbing shoes are mostly built from one of two materials, leather or synthetic, and which one you pick changes how the fit holds up over time.

Leather shoes tend to stretch a bit as you break them in. Because of that, a lot of climbers size leather shoes slightly snug on purpose, banking on them relaxing into a perfect fit after a few sessions. If you size a leather shoe to feel great on day one, it can end up loose a month later.

Synthetic shoes usually hold their shape. The fit you get the first time you lace them up is pretty much the fit you’ll have on your hundredth climb, so there’s less guessing. If you don’t want to gamble on stretch, synthetic is the safer bet.

Sizing with shape and downturn

Climbing shoes stand out from other sport shoes because they come in different shapes. Beginner shoes are mostly flat, while more aggressive bouldering shoes have a downturn that curves the sole and pulls your toes toward the front point.

That downturn changes how your toes sit inside the shoe, which changes the fit you feel.

Think about how you’ll use your toes when you try shoes on. When you’re checking the fit, make sure you can actually load every part of the shoe, especially the toe, without your foot shifting around inside it.

• Neutral: usually the roomiest-feeling shape, with your foot sitting flat.
• Moderate: fits your toes tighter than a neutral shoe but looser than an aggressive one.
• Aggressive: the tightest-feeling shape, with the most curl through your toes.

Shape ties straight into how much you’ll suffer for performance, so it’s worth reading through our full climbing shoe FAQ if you’re still deciding between a flat all-day shoe and something more downturned.

Common sizing and conversions

Most climbing shoes are measured in UK sizing, even at shops in the US. Because of that, it’s worth knowing your UK size before you start trying pairs on, so a chart makes a lot more sense.

Below is a sizing conversion chart from MadRock.

If you’re still shopping around, our roundup of the best climbing shoes under $100 is a solid place to compare fits without overspending on your first pair.

Once your shoes fit right, the next thing that holds people back is footwork, not gear. If you want to actually use those toes on the wall, join the free Send Edition newsletter for a short climbing drill every week that takes about 15 minutes. It’s the easiest way to turn a good-fitting shoe into better climbing.

Frequently asked questions

How should climbing shoes fit?

Climbing shoes should fit snug all the way around with no dead space at the toes or heel, and your foot shouldn’t slide inside the shoe. They’ll feel a bit tighter than street shoes, but you’re aiming for snug, not painful. Brand, material, and shape all shift where that snug fit lands.

Should I size down in climbing shoes?

It depends on the material. Leather shoes stretch, so many climbers size them slightly snug knowing they’ll relax into a good fit. Synthetic shoes mostly hold their shape, so the size that feels right on day one is the size to keep.

Do climbing shoe brands run small?

Some do. Climbers commonly report La Sportiva and Scarpa running smaller than street shoe size, while Madrock often runs larger and Evolv sits close to street size. Because fit varies this much between brands, trying shoes on in a shop is the safest way to size.

How tight should climbing shoes be?

Tight enough that your foot doesn’t move inside the shoe, but not so tight that it causes pain. A little discomfort is normal at first, real pain is a sign the shoe is too small. See our guide on how tight your climbing shoes should be for the full breakdown.

Related Questions

There are a lot of other things to consider than just how your climbing shoes fit. Below are other articles that may helpful for you.

How Tight Should Your Climbing Shoes Be?

Climbing shoes should be tight enough to prevent movement in the shoe. Generally, you should feel uncomfortable in your climbing shoes but you shouldn’t feel pain. Any movement in the shoe can prevent optimal use of your climbing shoes but if climbing shoes are too tight, they may cause damage to your feet.

Sara Climbing Coach, Climbing Trainer, Writer

Sara is the founder of Send Edition, author of '77 Drills to Help You Climb Better,' the creator of 'Elevate Your Climbing: Training Planner and Tracker,' and climbing coach.

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