Do compression socks work for running?

The short answer

Compression socks worn during a run will not make you faster, will not reduce how hard the run feels, and will not change what is happening physiologically while you run.

Compression socks worn after a run may help you recover, and there is reasonable evidence for that.

So the honest advice is: they are a recovery tool, not a performance one. Most of the marketing has this the wrong way round.

What the research actually found

A systematic review and meta-analysis published in 2025 pooled 28 trials covering 600 runners. It looked at whether compression socks worn during running improved anything at all.

The answer was no. No improvement in running speed. No improvement in time to exhaustion. No change in heart rate, oxygen uptake or blood lactate. No reduction in perceived effort. No reduction in muscle soreness. Across every measure, compression socks performed the same as ordinary socks.

The reviewers were blunt about the context, noting that compression socks are widely advertised to runners and that the high-quality evidence supporting those adverts is limited.

That is about as clear as sports science gets, and it is worth taking seriously.

So why do runners swear by them?

Two reasons, and one of them is real.

The real one: muscle vibration. Every time your foot hits the ground, you absorb a force of somewhere between two and a half and six times your body weight. That impact sends vibrations through the soft tissue in your calf. There is evidence compression reduces that vibration, and less vibration plausibly means less micro-damage to the muscle. That is a mechanism for better recovery, not better performance.

The less real one: they feel good. A snug calf feels supported. Feeling supported feels like an advantage. Runners are as susceptible to that as anyone, and there is no shame in it. But feeling faster and being faster are different things, and the trials measured the second one.

Where they genuinely help: afterwards

This is the part the adverts underplay, and it is the part with the evidence behind it.

Studies of compression worn during and after long runs have found reduced perceived leg soreness and better muscle function in the recovery period, with the benefits showing up soon after finishing. One study of marathon runners who wore compression for 48 hours after a race found a measurable improvement in performance on a treadmill test two weeks later.

If you race regularly, train hard, or run back-to-back days, that matters. Recovering better means training more consistently, and training consistently is what actually makes you faster. Just not in the way the packaging suggests.

How to actually use them

• Wear them after your run, not during. That is where the evidence is. Put them on once you have finished and keep them on for a few hours.
• Longer is better for hard efforts. After a race or a long run, several hours or the rest of the day is reasonable.
• Take them off at night. Compression works while you are upright. There is no benefit to sleeping in them, and it is not advisable without medical advice.
• 15 to 20 mmHg is plenty. You do not need medical-grade compression for recovery from a Sunday long run.

And if you like running in them because they feel good, keep doing it. There is no evidence they do any harm, and comfort has value. Just do not expect a personal best out of it.

What about calf sleeves?

Same principle, same evidence, same limitations. A calf sleeve is a compression sock without the foot. If you prefer your own running socks, a sleeve lets you have both. It will not change the outcome.

Getting the fit right

Compression only works if the sock fits. Measure your calf at its widest point and use the size guide rather than guessing from your shoe size. Runners often have larger calves than the sizing charts assume, and a sock that digs in at the top is restricting blood flow rather than helping it.

Look for graduated compression, where the pressure is firmest at the ankle and eases up the leg. If the mmHg rating is not stated anywhere, it probably is not offering real compression.

Our compression socks range covers everyday support through to sports compression, in a range of sizes and materials.

If you are new to compression and want the basics, our guide to what compression socks are explains how it works and what the mmHg numbers mean.

FAQs

Will compression socks make me run faster?

No. A 2025 review of 28 trials found no improvement in race time, speed or time to exhaustion compared with normal socks.

Should I wear compression socks during a marathon?

You can, and plenty of people do. It will not make you faster, but it may reduce muscle vibration during the race, which could help you recover afterwards. There is no evidence it does any harm.

When should I put compression socks on for recovery?

As soon as you have finished. Keep them on for a few hours, or the rest of the day after a hard effort. Take them off before bed.

Do compression socks prevent injury?

There is no good evidence for that. Reduced muscle vibration is a plausible mechanism, but nobody has shown it translates into fewer injuries.

Compression socks or calf sleeves?

Whichever you prefer. Sleeves let you keep your own running socks. The compression works the same way.

This article is for general information and is not medical advice. If you have a diagnosed condition affecting your circulation, or you are recovering from an injury, speak to your GP, physiotherapist or pharmacist before using compression garments.