When we see a cyclist riding in their perfectly fitted jersey, we rarely think about what they are wearing underneath. However, the cycling undershirt—also known as a base layer—is key to comfort, breathability, and performance on every ride.
In this article, we'll tell you what cyclists usually wear under their cycling jerseys, the advantages of each option, and how to choose the most suitable one depending on the season and type of route.
Is it necessary to wear something under your jersey?
The short answer is yes, in most cases. Although some cyclists ride without base layers, a cycling base layer offers significant benefits:
- Better moisture and sweat management.
- Thermal insulation in cold weather.
- Greater comfort by preventing direct rubbing against the jersey.
- Promotes breathability on long rides.
Common options under the jersey
Cycling Base Layer
This is the most popular option. They are made from ultra-lightweight technical fabrics that regulate temperature and wick away moisture. You can see some examples in our section on men's and women's base layers.
Without Base Layer
Some cyclists prefer to wear only their jersey, especially on short rides or in summer. It's cooler, but it can cause chafing and accumulate sweat.
Thermal Base Layers
On cold routes, many cyclists add thermal or long-sleeved shirts under their jerseys to maintain a stable body temperature.
Tips for choosing the right garment to wear under your jersey:
- Summer: sleeveless, breathable, quick-drying base layers.
- Winter: long-sleeved or thermal shirts that retain heat.
- Long rides: opt for technical fabrics that reduce friction.
- Fit: it should be snug but not tight, like the jersey itself.
|
Option |
Pros |
Cons |
|
With base layer |
Better breathability, prevents chafing, regulates temperature |
It can be hot on very warm days |
|
|
Cooler and lighter |
Direct perspiration, risk of chafing |
|
|
Insulates against the cold, ideal for winter |
More volume, not suitable for summer |
Final conclusions and recommendations
The garment worn under your cycling jersey makes the difference between a comfortable ride and one full of discomfort. Choosing the right base layer—suited to the season and type of ride—is just as important as choosing the jersey itself.
Discover our collection of jerseys, bib shorts, and cycling accessories designed for every season at Twenty One Cycling.
