The best compression socks for travel are graduated knee-highs at 15 to 20 mmHg that fit your calf. Put them on before any journey of 4 hours or more.
It's half five in the morning at Gatwick. You've got eleven hours to Dubai, a connection after that, and a pair of trainers that fit perfectly in the departure lounge. By the time you reach your hotel, they'll feel a size too small, and your ankles will have puffed up over the tongue. The same thing happens on the four-and-a-half-hour train to Edinburgh or the long drive down to Cornwall, just more quietly.
You already know compression socks help with that. What you want now is to know which pair to buy, how many to pack, and how to use them so they work from your front door to your destination. That's what this guide covers.
We'll go through what makes a good pair of travel compression socks and how many pairs to take for a fortnight away. We'll also cover when to put them on and who should check with a GP before travelling in them. By the end, you'll be able to order the right pair and pack it alongside your passport.
What are the best compression socks for travel?
The best compression socks for travel give graduated compression of 15 to 20 mmHg and finish just below the knee. They should be sized from your calf measurement and made from a breathable nylon and spandex blend that copes with warm cabins and hot destinations. Pack at least two pairs so you've got a fresh one for the journey home.
"Graduated" means the sock squeezes hardest at the ankle and eases off towards the knee. Sitting still for hours lets blood and fluid settle around your ankles, and that pressure pattern helps move them back up the leg. 15 to 20 mmHg is firm enough to make a difference on a long journey and comfortable enough to wear from check-in to arrival without a prescription.
Our knee-high compression socks are 15 to 20 mmHg, made from 80% nylon and 20% spandex, and registered with the MHRA, the UK's medical device regulator, so they're medical-grade. They come in Juicy Red and Banana Yellow, which matters more than you'd think when you're pairing them with holiday clothes.
This page is a buying and packing guide for every kind of trip. For the flying-specific questions, see our guides on whether flight socks are the same as compression socks and when to take off compression socks after a flight.
Do compression socks work for travel?
Yes, for long journeys. The strongest evidence comes from flights. A 2021 Cochrane review of trials on flights lasting at least four hours found high-certainty evidence that passengers wearing compression stockings can expect a substantial reduction in symptomless DVT, a blood clot in a deep vein of the leg that doesn't cause obvious symptoms. It also found low-certainty evidence that they reduce leg swelling.
Trains, coaches and cars put your legs through the same thing: hours of sitting with your knees bent and your calf muscles barely working. The NHS lists a long journey (more than 4 hours) by plane, car or train among the times the risk of DVT goes up. It also advises loose clothing, plenty of water, avoiding alcohol and walking around when you can.
Compression socks work alongside those habits rather than instead of them. Think of them as the part of your travel routine that keeps working while you're asleep in seat 34F.
What should you look for in travel compression socks?
Look for a graduated 15 to 20 mmHg rating, knee-high length, calf-based sizing, and a breathable synthetic fabric. A colour you'll be happy to wear off the plane helps too. Each of these matters more on a journey than it does at home.
A stated compression level of 15 to 20 mmHg
The packet should print an mmHg figure. If it doesn't, you can't know what pressure you're getting, and plenty of cheap airport "travel socks" give no number at all. 15 to 20 mmHg suits most travellers. Firmer stockings are usually prescribed after a GP has checked your circulation, so they're not a sensible thing to grab on the way to the gate.
Knee-high and graduated
Knee-high socks cover the ankle and calf, where swelling builds up on a long journey. They're also far easier to manage than thigh-length stockings in an aircraft toilet or a motorway service station. Check that the word "graduated" sits next to the mmHg figure, so the pressure is highest at the ankle where it's needed.
Sized by your calf
The squeeze depends on fit, so travel compression socks should be sized by calf measurement as well as shoe size. Measure the widest part of your calf in the morning, before you've been on your feet. Our socks come in Small (UK shoe 3 to 6, calf 30 to 37 cm) and Medium (UK shoe 6 to 9, calf 36 to 43 cm), and if you're between sizes, go up. Our guide to how tight compression socks should be explains what a good fit feels like.
A fabric that copes with heat
Aircraft cabins, trains, and holiday destinations all get warm. A nylon and spandex blend pulls sweat away from your skin and dries quickly, while cotton-rich socks stay damp and start to rub after a few hours. That matters on a long-haul flight into Bangkok as much as on a sticky July train to Manchester.
A colour you'll wear on arrival
You'll probably keep your compression socks on for a while after you arrive, through passport control, the taxi queue and the first walk to dinner. A pair you like the look of gets worn. A beige pair gets peeled off in the airport toilets, and that's the moment it stops helping.
How many pairs of compression socks should you pack?
Pack one pair for each long travel day, plus one spare. For a typical return trip, that means a pair for the outbound journey, a fresh pair for the journey home, and a spare for long day trips or a delayed connection.
Compression socks should be washed after each wear and dried without heat, which can be awkward on the road. A hotel sink, a little gentle soap and cold water are all you need. Squeeze the socks out without wringing, and dry them flat over a chair or towel rail rather than on a radiator or in direct sun, because heat weakens the elastic. Our guide on how to wash compression socks explains the routine.
A pair of our socks costs £30, two pairs cost £54, and three cost £72, with free UK delivery on orders over £50. If you're travelling as a couple, a three-pack split between you covers both outbound journeys with a spare.
When should you wear compression socks while travelling?
Put your compression socks on at home on the morning you travel, keep them on for the whole journey, and take them off once you've arrived and walked around for a while. Putting them on at the gate is too late, because your legs have already started to swell during the hours of queuing and sitting.
On long train, coach and car journeys, get up and walk when you can. Use every service-station stop on a road trip to stretch your legs. In your seat, flex and point your feet every half hour or so to work your calf muscles.
On arrival, keep the socks on through the transfer to your hotel and until you've been walking normally for a while. Take them off before you go to bed. Our guide to when to take off compression socks after a flight covers the timing after long-haul flights in more detail.
Is it safe to wear compression socks when travelling?
For most healthy adults, yes. Compression socks at 15 to 20 mmHg are safe to wear for a long journey. Some people should speak to their GP before travelling in them, ideally a few weeks before the trip so there's time to sort out alternatives.
Thrombosis UK advises against compression stockings for people with advanced peripheral arterial disease, congestive heart failure, loss of feeling in the legs (such as neuropathy from diabetes), infected phlebitis, an oozing skin rash, or an allergy to the material. NICE explains that the reduced blood flow in peripheral arterial disease can be worsened by compression therapy. Our guide on who should not wear compression socks covers each condition in more detail.
If you've had a DVT before, talk to your GP before any long journey. The NHS advises people recovering from a DVT to delay flights or long journeys until at least 2 weeks after starting blood-thinning medicine. If you're pregnant, check with your midwife or GP before you travel. Our guide to compression socks for pregnancy has more detail.
Know the warning signs for after you arrive. The NHS lists throbbing pain or swelling in one leg, usually the calf or thigh, as symptoms of DVT. Ask for an urgent GP appointment or get help from NHS 111 if you think you have one. Call 999 or go to A&E if leg pain and swelling come with shortness of breath or chest pain. If you're abroad, seek local medical help straight away.
Frequently asked questions
Should you wear compression socks on a short-haul flight?
For a healthy adult on a flight under four hours, compression socks are optional. They're still worth wearing if your ankles tend to swell, if you're connecting onto a longer flight, or if your GP has told you you're at higher risk of blood clots. Many people simply wear them for every flight and find their legs feel lighter on landing.
Are airport flight socks worth buying?
Some are, some aren't. Many socks sold at the airport don't state an mmHg figure or size by calf, so you can't tell what pressure you'll get. Buy a properly sized, graduated pair before you travel, and you won't be guessing in the departure lounge.
Do compression socks help with jet lag?
No. Compression socks help with leg swelling and support circulation in your legs during long periods of sitting. They don't affect your body clock. Arriving with legs that feel lighter can make the first day easier, but jet lag needs its own plan, such as adjusting your sleep and getting daylight.
Can you wear compression socks on a long car journey?
Yes, and the NHS includes car journeys of more than four hours in its list of times when the risk of DVT goes up. Wear the socks for the whole drive and stop every couple of hours to walk around. Drivers should make sure the socks don't feel too tight around the ankles or make it harder to work the pedals.
Can you wear compression socks in a hot country?
Yes. Choose a thin, breathable nylon and spandex blend rather than cotton, and wear them for the travel days and long sightseeing days rather than lounging by the pool. Take them off if your skin gets sore or overheated, and wash them in cold water each evening so they're fresh for the next day.
Packing your travel compression socks
The best compression socks for travel are graduated knee-highs at 15 to 20 mmHg, sized from your calf, in a breathable nylon and spandex blend you'll be happy to wear on arrival. Put them on at home before any journey of four hours or more, wear them all the way, and take them off once you've arrived and walked around. Pack a fresh pair for the trip home. If you have peripheral arterial disease, heart failure, neuropathy, a past DVT or a pregnancy, speak to your GP or midwife first.
A week before you travel, measure the widest part of your calf in the morning and note your UK shoe size. Then check both against the size guide on our 15 to 20 mmHg knee-high compression socks, and order two pairs so one goes in your hand luggage, and one is ready for the journey home.
