The Endura Transmission II base layer is made from polypropylene, a fabric that some people think is old-fashioned – it was used to make base layers when they were first invented, after all.
The material fell out of favour because even though it's hugely effective, it stinks to high heaven after even a short time. Happily technology has moved on, and it's now possible to combine the superior wicking and drying quality of polypropylene with anti-bacterial treatments that deal with your horrific hum.
Don't turn off at the science – it's a long intro for a reason. We were blown away by the fit and performance of this base layer, but couldn't help but notice that our rides ended with a definite aroma.
However, when we returned (cautiously) to the Endura after having stored it carefully in a heap on the floor overnight, we found the smell had dispersed and we were good to go another day.
And that's not all. We can't speak highly enough of the cut of this top. It has a neatly fitting shoulder line – one that still has plenty of freedom of movement – combines with a slim body that's snug enough to work and easy enough to move in. The length is properly cycle-specific, and there are well-observed details such as a no-feel label and a compliment of flatlocked seams. You probably need to buy one.