Wear the Shorts: How to Prevent Thigh Chafing When Running

You know the shorts.

They look great. They feel great standing in front of the mirror. Maybe they're the 3-inch running shorts you really wanted to wear on race day.

Then you start running.

A few miles later, they ride up. Your thighs start rubbing. And suddenly you're thinking less about your run and more about the increasingly angry patch of skin between your legs.

So next time, you reach for the longer shorts.

Not because you like them better.

Because they don't chafe.

We think that's backwards.

Wear the shorts you want to wear. We'll handle the friction.

Why do my thighs chafe when I run?

Chafing is caused by repeated friction.

That friction can happen skin against skin, skin against clothing, or anywhere your body and gear repeatedly rub while you move.

Running adds a few things that can make the problem worse:

• repetitive movement

• sweat

• heat and humidity

• wet clothing

• seams and fabric rubbing the same spot

• shorts that move or ride up as you run

• longer distances and more time on your feet

And yes, sometimes your thighs touch.

That's normal.

You don't need a certain body shape to be a runner, and you shouldn't need a thigh gap to wear running shorts.

Why shorter running shorts can cause thigh chafing

Longer compression shorts and bike-style shorts can solve thigh rubbing by putting fabric between your legs.

They work.

But that doesn't necessarily mean they're the shorts you want to wear.

Maybe you prefer lightweight split shorts.

Maybe you like a 3-inch inseam.

Maybe you feel better in loose running shorts.

Maybe it's 90 degrees outside and the last thing you want is more fabric wrapped around your legs.

When shorter shorts expose the area where your thighs naturally meet, skin can repeatedly rub against skin. Add sweat and thousands of running strides, and a tiny irritation can turn into a very uncomfortable run.

The answer doesn't always have to be wear longer shorts.

Sometimes the better answer is to manage the friction.

How to prevent thigh chafing while running

There isn't one perfect solution for every runner. Clothing, weather, distance, sweat and your individual movement all play a role.

But these are some of the simplest ways to reduce the chances of chafing.

1. Pay attention to where you actually rub

Don't wait until after the run to figure it out.

Think about the places that regularly give you trouble: inner thighs, bra lines, underarms, waistbands or anywhere clothing tends to move against your skin.

Those are the areas to protect before you start.

2. Choose shorts that fit your body well

The shortest shorts aren't automatically the problem.

Poorly placed seams, bunching fabric, loose liners and shorts that constantly ride up can all create additional friction.

A good pair should let you move naturally without constantly adjusting them.

And if you've found a pair you love?

You shouldn't automatically have to give them up because your thighs touch.

3. Use anti-friction protection before you run

An anti-chafe product creates a low-friction layer over the skin so rubbing surfaces can move more smoothly against each other.

Apply it to the areas where you know friction normally develops before you start running.

For inner-thigh chafing, that usually means covering the areas where your thighs rub during your stride—not simply one small spot where you've chafed before.

4. Don't forget sweat, heat and distance

Something that works perfectly during a three-mile run may behave differently during a humid half marathon.

Long efforts mean more repetitions.

Hot weather means more sweat.

Rain can leave both skin and clothing wet for hours.

If you're preparing for a race, test your shorts and anti-chafe setup during training first.

Race day is a terrible time to discover that your favorite shorts become tiny cheese graters at mile nine.

Can you run in short shorts if your thighs touch?

Absolutely.

Thighs touching doesn't make you less athletic, and it doesn't mean short running shorts aren't for you.

Plenty of runners experience inner-thigh friction. Body shape, running mechanics, clothing and conditions all affect where rubbing happens.

The goal isn't to change your legs.

It's to reduce the friction.

What about "chub rub"?

You'll often hear inner-thigh chafing called chub rub.

The name is catchy, but thigh chafing isn't limited to one body type.

Runners, hikers, walkers and endurance athletes of all shapes and sizes can experience it.

Muscular legs can rub.

Curvy legs can rub.

Lean runners can chafe.

Bodies move. Skin touches. Friction happens.

It's a mechanical problem—not a judgment about your body.

How Run Slick helps

Run Slick was built to help reduce friction without the heavy, waxy or greasy feel you may associate with traditional anti-chafe products.

Roll it onto the areas that tend to rub, apply a thin and even layer, allow it to settle, and go.

The formula leaves a smooth, silky barrier designed to hold up through sweat, heat, humidity and long efforts.

And because it applies clear and doesn't require you to rub it in with your hands, it's easy to make part of your pre-run routine:

Shoes.

Watch.

Run Slick.

Go.

And it's not just your thighs

The same friction problem can show up almost anywhere you move.

Thighs. Bra lines. Underarms. Waistbands. Pack straps.

On shorter runs, you may never notice it.

During longer efforts, that tiny area of rubbing can become the only thing you can think about.

Preventing friction before it starts lets you focus on something much more important:

the run.

Wear what you want. Move how you want.

There are already enough reasons to second-guess the clothes we wear.

Running shouldn't add another one.

If those are the shorts you feel great in, wear them.

If they're the shorts that make you feel fast, wear them.

If they're the shorts sitting in your drawer because the last time you tried them your thighs were on fire by mile four...

wear the shorts.

We'll handle the friction.

Run Slick — long-lasting friction protection for wherever you move.