Temperature alone isn’t the deciding factor. If you’re cycling hard, you generate significantly more body heat – and sweat more as a result. This changes what you need:
For high intensity (racing pace, hard intervals, steep climbs):
Fewer layers than indicated in the table above. Wicking takes priority over warmth. transtex® light or transtex® light grid as a base layer, no thermal jersey. A well-fitting wind vest is often sufficient down to 5°C.
At low intensity (commuting, leisure ride, long flat climb):
One extra layer. The body produces less heat. Here, transtex® warm is a good choice as a base layer, combined with a thermal jersey.
Rule of thumb: The higher the intensity, the more synthetic (transtex®). The lower the intensity, the more merino or transtex® merino hybrid.