Assos took their Summer Skin Layer and stripped it down even further. This new sleeveless version is lighter, stretchier, and moves more air than the last one, about 15 percent lighter, actually. No bulk under race-fit sleeves, no seams fighting your jersey. Just a true second-skin base that disappears once you’re on the bike.

The fabric uses a more open structure to cool better when the temperature spikes, and the fit wraps the body without feeling restrictive. Permanent odor control means it holds up through real use, not just the first few rides. A low collar and raw-cut armholes keep it clean under both endurance and race jerseys. Hot days, long rides, this is the layer you forget you’re wearing, which is the entire point.