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Three thin layers beat one thick coat.

How to pack for cold trips using base, middle and outer layers, why cotton is a poor choice in the cold, and what to protect first.

Original guide · Published 11 November 2026 · Sources listed below

Packing for cold weather is where many travellers overpack the most. A huge coat, two thick jumpers and a pair of heavy boots can fill a suitcase on their own, and you still end up too hot on the train and too cold on the street. The answer used by mountaineers, skiers and people who live in cold places is not more clothing. It is better-arranged clothing.

The three-layer idea

Instead of one thick garment, you wear several thinner layers, each with a job.

• Base layer: next to your skin. Its job is to move sweat away from your body so you stay dry. Thin merino wool or synthetic thermal tops and leggings are the usual choice.
• Middle layer: the insulation. It traps warm air. A fleece, a wool jumper or a light down or synthetic insulated jacket all work.
• Outer layer (shell): protection from wind, rain and snow. A waterproof, windproof jacket keeps the other layers working.

The advantage is control. Going from a freezing street into a heated museum, you take off the middle layer. Walking uphill, you open the shell. Standing still at a viewpoint in the wind, you put everything back on. With one big coat, you only have two settings: on and off.

Why cotton is a poor choice

Cotton feels comfortable, but it absorbs water and dries slowly. Once a cotton T-shirt is damp with sweat or rain, it stays damp, and wet clothing pulls heat from your body far faster than dry clothing. That is why outdoor safety guidance often warns against cotton for cold or wet conditions.

For base layers and socks in particular, choose wool or synthetic fabrics that keep insulating even when slightly damp. Cotton is fine for a heated café; it is a poor choice for a long walk on a cold, damp day.

Protect the extremities

Your body protects its core in the cold by reducing blood flow to your hands, feet, ears and nose. Those are the parts that feel cold first and are most at risk of frostbite in severe conditions. The US National Weather Service and the CDC both emphasise covering them.

• Hat: a warm hat that covers your ears.
• Gloves: thin liner gloves under warmer gloves or mittens give you both dexterity and warmth. Mittens are warmer than gloves.
• Neck: a scarf or a neck gaiter seals the gap between collar and chin.
• Feet: warm socks, ideally wool, and footwear with enough room that your toes are not squeezed. Tight boots restrict circulation and make feet colder.

These items are small and light, and they make more difference to comfort than an extra jumper.

Footwear and grip

Cold destinations often mean ice. Waterproof boots with a deep tread are worth packing if you expect snow or slush, and wearing them on travel day saves space in your bag. Some travellers pack slip-on ice grips for icy pavements, which weigh very little.

Know the warning signs

Most cold-weather trips are about comfort, but it helps to know when cold becomes a health problem. The CDC lists warning signs of hypothermia in adults as shivering, exhaustion, confusion, fumbling hands, memory loss, slurred speech and drowsiness. Frostbite may cause skin that looks white or greyish-yellow, feels unusually firm or waxy, or is numb. Both need prompt attention: get somewhere warm and seek medical help if symptoms are more than mild.

The main protective steps are the same as for comfort: stay dry, stay covered, and do not let yourself get exhausted and cold at the same time.

A cold-weather packing list for a week

For a city trip in winter, this covers most situations:

• two base-layer tops and one pair of thermal leggings
• one or two warm middle layers
• one waterproof, windproof outer jacket
• three or four everyday tops to wear over the base layer
• two pairs of trousers
• warm socks, one pair per day or a plan to wash
• hat, gloves and scarf
• waterproof boots with grip
• lip balm and moisturiser, because cold, dry air is hard on skin

For hiking or remote areas, add the outdoor essentials in our guide to packing a day pack.

Look after the kit, too

Cold also affects your equipment. Phone batteries drain much faster in low temperatures, so keep your phone in an inside pocket close to your body and carry a power bank in your hand luggage, as explained in power banks on planes. Water bottles can freeze on long outdoor days; an insulated bottle or keeping water inside your pack helps. Down jackets lose much of their warmth when wet, so a waterproof shell over the top matters in snow and sleet.

Build it in Packlight

Choose "cold" as the weather in Packlight to start with a list that includes warmer layers, then add your own items. If you are flying, wear your heaviest layers and boots on the plane. A packed down jacket takes up surprisingly little space, but boots never do.

Build your packing list