Base Layers

We can officially only rate these warmers at UPF 50+, but in our laboratory tests they actually blocked 99.8 percent of damaging UV rays.

Eliminate unwanted bulk underneath an aero race jersey with the ASSOS 1/3 Sleeveless Skin Layer P1, a sleeveless baselayer built with a second-skin fit to keep us cool during a hot summer ride.

The next evolution of the hypercooling, ultrabreathable Summer Skin Layer, re-engineered to be more elastic, more breathable, and 15% lighter. The sleeveless design eliminates layering bulk beneath second-skin, race-tuned jersey sleeves.

To sleeve or not to sleeve—that is the question. Sure, it all boils down to a matter of preference, but the objective remains the same for any cycling base layer: increase comfort and maintain a consistent body temperature.

It’s crucial that our upper body gets an added boost against the elements during those cold fall and early spring conditions. As a solution, we developed the Spring/Fall LS Skin Layer, which has taken the torch from our iconic Skinfoil base layers.