Running Apparel -- Kit for Every Mile and Season
Running is the purest test of activewear -- you repeat the same motion for miles, generate a lot of heat, and any chafe or clamminess is quickly punished. The right running kit is light, breathable and unrestrictive, and layers sensibly for the weather. This hub covers running tops and bottoms, layering for cold and rain, and how to dress for each season, with brands like On Running and Salomon. It links to the running shoe hub and the flagship activewear types guide.
Running Tops & Bottoms
Running Tops
Lightweight, breathable tees and vests.
What to look for
Running tops should be lightweight, moisture-wicking and breathable, with a close but not restrictive fit and flat or minimal seams to prevent chafing. Vests and short-sleeve tees suit warm weather; long sleeves add a little warmth for cooler runs.
Why it matters
The top is your main sweat manager on a run, so wicking and breathability matter most. On Running and Salomon both make technical running tops -- browse the On Running t-shirts.
Running Shorts
Light, free-moving shorts with useful details.
What to look for
Running shorts should be light and free-moving, often with a built-in liner for support, a secure pocket for keys or gels, and a length that suits your preference. Split or slit hems increase stride freedom for faster running.
Why it matters
Shorts are the warm-weather default for most runners, prioritising freedom and ventilation. Look for a comfortable waistband and anti-chafe liner for longer distances.
Running Tights & Leggings
Compression and warmth for cooler runs.
What to look for
Running tights and leggings offer warmth, muscle support and freedom of movement in cool weather, in full or three-quarter lengths. Look for four-way stretch, a secure waistband, zip pockets and reflective detail for low light.
Why it matters
Tights keep the legs warm and supported without flapping fabric, ideal for autumn and winter running. The leggings hub covers fit and fabric in full.
Layers & Weather
Running Jackets
Packable wind and rain protection on the move.
What to look for
A running jacket should be light, packable and breathable, offering wind and light rain protection without trapping heat. Look for a close athletic fit, vents or a breathable membrane, and reflective detail. On Running makes lightweight running shells.
Why it matters
A good running jacket keeps the weather off without overheating you on the move. Browse On Running jackets for lightweight options.
Layering for the Run
Dressing in removable layers for changing effort.
What to do
Layer for running so you can regulate heat as you warm up: a wicking base, an optional mid-layer for warmth, and a windproof or waterproof shell on top. Dress for how you will feel a mile in -- slightly cool at the start -- not for standing still.
Why it matters
Running generates a lot of heat, so over-dressing is a common mistake. Removable layers let you adapt to the weather and your rising body temperature.
Cold & Wet Weather Running
Staying warm and dry when conditions turn.
What to do
For cold, wet runs, use a wicking base layer, warm tights, gloves and a hat (a lot of heat is lost from the head and hands), and a windproof or waterproof breathable jacket. Add reflective detail for dark mornings and evenings.
Why it matters
The extremities chill fastest, so hats and gloves matter more than an extra body layer. Staying warm and visible keeps winter running safe and comfortable.
Running Smart
Dressing by Season
Matching kit to the weather all year round.
What to do
In summer, run in a vest or tee and shorts; in spring and autumn, add a long-sleeve top or light jacket and consider tights; in winter, layer a base, tights, hat, gloves and a shell. Always favour being slightly cool at the start.
Why it matters
Dressing for the season keeps you comfortable and prevents both overheating and chilling. Adjusting kit through the year is how experienced runners stay consistent.
Chafe & Comfort
Small details that prevent big problems.
What to do
Prevent chafing with flat or seamless seams, a good fit that does not rub, and anti-chafe balm on problem spots for long runs. Choose wicking fabrics that stay dry, and make sure waistbands and liners sit comfortably.
Why it matters
Chafing and hot spots can ruin a long run and are entirely preventable. Good kit and a few small habits keep every mile comfortable. The On Running beginners guide has more.
Frequently asked questions
What should I wear for running?
Wear lightweight, moisture-wicking, breathable kit that moves freely and does not chafe. In warm weather that means a technical tee or vest and running shorts; in cooler weather, add a long-sleeve top and tights, and top with a windproof or waterproof jacket if needed. Avoid cotton, which soaks up sweat and stays wet. A good rule is to dress so you feel slightly cool when you start, because you will warm up quickly once moving. Add a hat, gloves and reflective detail for cold, dark conditions.
Should I wear shorts or tights for running?
It comes down to temperature and preference. Shorts are cooler and best for warm weather and hard efforts where you generate a lot of heat. Tights and leggings add warmth, muscle support and wind protection, making them ideal for cool and cold conditions, and many runners prefer them year-round for the compression feel. Three-quarter tights are a good middle option for mild days. There is no rule -- pick whatever keeps your legs comfortable for the temperature you are running in.
How do I dress for running in winter?
Layer up but do not overdo it, since you will warm quickly. Start with a moisture-wicking base layer, add warm running tights and a long-sleeve top or light mid-layer, and finish with a windproof or waterproof breathable jacket if it is wet or blustery. Crucially, cover the extremities with a hat and gloves, as most heat is lost from the head and hands. Add reflective detail for dark mornings and evenings. Aim to feel slightly cool at the start -- if you are warm before you set off, you are overdressed.
Do I need a special running jacket?
If you run through autumn and winter or in changeable weather, a running-specific jacket is worth having. Unlike a general outdoor jacket, it is cut close for movement, is light and packable, and is designed to breathe so you do not overheat while working hard. Look for wind and light rain protection, vents or a breathable membrane, and reflective detail. For dry summer running you can manage without one, but for the UK's wet, windy conditions a good packable running shell makes cold-season running far more comfortable.
What is the best brand for running kit?
On Running is an excellent choice for road running, with lightweight, design-led tops, shorts, tights and jackets that coordinate with its cushioned footwear. Salomon is the standout for trail and off-road running, with rugged, weather-ready kit built for rough terrain. Both bring genuine technical performance, so the best pick depends on where you run -- On for road and everyday, Salomon for trail and mountain. The On Running and Salomon brand guides go into detail, and the activewear brands hub compares the full range.