How to Keep Your Legs Warm in Winter: 7 Layering Tips

The simplest way to keep your legs warm in winter is to add a close-fitting layer under what you already wear. A pair of thick leggings or thermal long johns under jeans or trousers holds a layer of warm air against your skin, and it costs far less than a new pair of winter trousers. Add something on the outside to block wind and rain, close the gap at your ankles, and most cold UK days become much more comfortable.

This guide explains why legs feel so cold in winter, what to wear under jeans, how to stay warm in a skirt or dress, and what to look for in a pair of winter leggings.

Why do my legs feel so cold in winter?

Most of us layer our top half carefully, with a vest, a jumper and a coat, and then wear a single layer of fabric on our legs. Denim and other cotton trousers do not insulate well on their own. Once they get damp from rain or drizzle, they lose much of the warmth they do give and take a long time to dry. Wind makes it worse, because cold air pushes through thin or loose fabric and carries heat away from the skin.

Sitting still adds to the problem. At a desk, on a station platform or on the sidelines of a Sunday football match, your legs are not producing much heat, and cold from the floor or a metal bench creeps in.

How to keep your legs warm: 7 practical tips

1. Wear a base layer under your trousers

A base layer is the piece that sits next to your skin. For legs, that usually means thermal long johns, thick leggings or warm tights. It should fit snugly without digging in at the waist or feeling tight around the knees, and it should be thin enough to sit under your trousers without bunching. This one change makes the biggest difference for most people.

2. Choose the right fabric next to your skin

Fabric matters as much as thickness. Wool and merino keep some warmth even when slightly damp. Synthetic thermal fabrics are light and dry quickly, which suits walking and commuting. A brushed or fleece-lined inner side traps extra air, so it feels warmer. Cotton is soft and comfortable for lounging at home, but it holds on to moisture, so it is less suited to long walks in wet weather. Check the label before you buy so you know what you are getting.

3. Add a wind- and water-resistant outer layer

A base layer works best when something on top stops the wind and rain reaching it. On wet, blustery days, that could be lined trousers, waterproof overtrousers for the dog walk, or simply a longer coat that reaches your thighs or knees. Keeping the base layer dry is what keeps it warm.

4. Leave a little room in your outer trousers

Very tight skinny jeans over leggings squeeze out the air that keeps you warm and can feel restrictive. Slim leggings under straight-leg, relaxed or bootcut trousers usually feel warmer and more comfortable than two tight layers pressed together.

5. Cover your ankles and feet

The gap between your trouser hem and your shoes lets in a surprising amount of cold air, especially when you sit down and your trousers ride up. Pull long socks over the bottom of your leggings, wear boots that come above the ankle on cold days, and keep your feet dry. Warm feet make the rest of your legs feel warmer too; our guide on how to keep your feet warm at home covers socks, slippers and cold floors in more detail.

6. Keep moving and get off cold surfaces

If you sit for long stretches, stand up and walk around every so often to get your circulation going. At home, the floor is usually the coldest part of the room, so a footstool or a rug under your desk helps. At outdoor events, sit on a folded blanket or cushion rather than directly on a cold bench or seat.

7. Change out of damp clothes quickly

Wet trousers chill you far faster than dry ones. If you get caught in the rain, change into dry layers as soon as you can rather than waiting for them to dry on you.

What to wear under jeans to keep warm

The best layer depends on how cold it is and how closely your jeans fit. Here is a quick comparison.

If you only want to buy one thing, a mid-weight pair of leggings that fits under your usual trousers is the most versatile choice. You can wear it on its own at home, under jeans for the school run, and under a dress at the weekend.

How to keep your legs warm in a skirt or dress

You do not have to put skirts and dresses away for the winter. A few small changes go a long way:

• Wear thick opaque tights or leggings underneath. Tights are sold by denier, a measure of yarn thickness, and the higher the number, the thicker and more opaque they tend to be.
• Choose a midi or maxi length, which covers more of the leg and blocks more wind than a short skirt.
• Add knee-high socks over tights for extra warmth on the lower leg.
• Wear boots that reach the calf or knee, so there is no bare gap above the shoe.
• Pick a coat long enough to cover the hem of your skirt or dress.

Leggings or tights: which are warmer?

It comes down to thickness and fabric rather than the name. Leggings knitted from thicker yarn are usually warmer and harder wearing than standard tights, and they are easier to wear on their own around the house. Tights are thinner, so they slide more easily under slim trousers and sit neatly with skirts. Many people end up using both: tights for work outfits, leggings for weekends, walks and staying comfortable at home.

What to look for in winter leggings

• Thickness: if you can see your skin through the fabric when it is stretched, the pair will not add much warmth.
• Waistband: a wide, soft waistband is more comfortable for long days and is less likely to roll down.
• Length: full-length leggings reach the ankle, so your socks can overlap the hem.
• Size: many winter leggings are sold in one size, so check the stated size range before you order.
• Care: follow the care label, and washing them inside out at a lower temperature helps them keep their shape.

Thick knitted leggings for everyday winter wear

If you want a simple everyday layer, our thick knitted women's leggings are full length with a knitted finish. They come in one size, listed as fitting UK 8–14, and the colour is chosen at random, so they suit anyone who is not set on a particular shade. Wear them under looser jeans or trousers on cold mornings, or on their own with a long jumper or dress at home.

You can find them alongside thermal floor socks, gloves and other cold-weather basics in our winter collection. We offer free standard delivery to the UK and US, with an estimated delivery time of 5–8 business days, or fast delivery for £8, with an estimated delivery time of 1–2 business days. Free fast delivery is available on UK orders of £50 or more and US orders of £60 or more. Full details are on our shipping policy page.

Frequently asked questions

Do leggings under jeans keep you warm?

Yes. A close-fitting layer under your jeans traps warm air next to your skin and stops wind reaching it directly. Thinner leggings work best under slim jeans, while thicker pairs suit looser fits.

What is the warmest thing to wear on your legs?

A warm base layer, such as fleece-lined or thermal leggings, under wind- and water-resistant trousers is the warmest everyday combination. For long periods outside in very cold weather, padded or insulated trousers give extra protection.

How can I keep my legs warm at home?

Wear leggings or long johns under your loungewear, keep your feet off cold floors with socks and slippers, put a blanket over your lap when you sit down, and get up and move around every so often.

Why are my legs always cold?

Often it is down to thin clothing, damp fabric or sitting still for a long time. If your legs or feet often feel unusually cold, numb or change colour, it is worth speaking to your GP or pharmacist.

Final thoughts

Warm legs in winter mostly come down to three things: one extra layer next to your skin, protection from wind and rain on top, and no cold gap at your ankles. Start with a pair of thick leggings or thermals under what you already wear, and browse our winter collection when you are ready to add the rest of your cold-weather basics.