Produkter
Buying guide
Running clothes
What matters most in a running T-shirt
Running is the same movement repeated thousands of times. That is why the small things count: a fabric that does not get heavy with sweat, and a fit without loose folds that can chafe on a long run. Polyester is light and dries faster than cotton, which soaks up sweat and turns cold and heavy.
Your arms swing back and forth with every stride, so a running top should fit in a way that stops the sleeve rubbing against your upper arm. Choose a fit that sits close without being tight. If you are torn between two sizes, remember that a closer-fitting shirt usually chafes less than one that is too big.
Running in all weathers, all year round
Northern European weather changes quickly, and running gear needs to work in layers. In summer, a light T-shirt is often all you need. In spring and autumn you can wear the T-shirt as a base layer under a thin jacket that you take off once you have warmed up. In winter, more layers go on, but a light shirt next to the skin is still comfortable.
If you run in the dark, make sure you are visible to traffic, for example with a reflective vest or a head torch. That is general advice. Zilenzo does not sell reflective products, so you will need to find them elsewhere.
| Season | Base layer | On top |
|---|---|---|
| Summer | Light T-shirt | Often nothing |
| Spring and autumn | Light T-shirt | Thin jacket |
| Winter | Light T-shirt | More layers |

Running clothes for men and women
Our men's and women's running clothes each have their own cut, because shoulders, waist and length are not the same. Both have the same running design and come in XS–XXL. Measure yourself and compare with the size guide on the product, so the fit suits the way you run.
Tights, jackets and socks are on the way
As well as a top, most runners use shorts or tights, running socks that do not cause blisters, and a light jacket or quarter-zip for cooler weather. At Zilenzo, T-shirts are currently the only items you can buy. Our first tights, shorts, jackets and socks are in development. Join Zilenzo Club and we will let you know when they arrive.
The running design: our idea, AI's suggestions
The starting point was running and the feeling of a steady rhythm and fresh air. We gave that idea to artificial intelligence, which produced lots of pattern and colour suggestions. We chose the best and adapted them so the design sits right on the body in motion. That is how all our designs come about.
Wash your running T-shirt after every run, inside out at a low temperature. Leave out the fabric softener, let the shirt air dry and follow the care label in the product.
Frequently asked questions
What should you wear when running?
When running, you need a light top that dries quickly and does not chafe, shorts or tights, and running shoes that suit your feet. In cooler weather, add layers. Zilenzo's running T-shirts are made of polyester and come in men's and women's cuts.
Is polyester or cotton better for running?
Polyester is usually better for running, because the fabric is light and dries faster than cotton. Cotton soaks up sweat and gets heavy, especially on long runs.
How do I avoid chafing when I run?
Choose a running top that fits close without loose folds and is not too big. Test new kit on short runs before you take it on a long run or a race.
Does Zilenzo sell reflective gear for running?
No, we do not sell reflective products. If you run in the dark, we generally recommend wearing reflective gear or a light so you can be seen by traffic.
How quickly does Zilenzo deliver, and can I return my order?
We ship from Denmark, and the delivery time and shipping cost for your country are shown at checkout. You have 14 days to withdraw from your purchase. You pay the return shipping yourself.