What Our Gearhead® Experts Are Saying: “On sweltering climbs and every indoor interval session, this layer is my secret weapon. It dries unbelievably fast, and the mesh stays comfortable even when I’m working at max effort. The stretch keeps it tight without feeling restrictive, and the seamless design means no hotspots under bib straps.” We rely on the Shimano Vertex Mesh Sleeveless Base Layer when hot-weather rides and intense indoor training sessions demand maximum breathability. Shimano pairs recycled mesh fabrics with smooth stretch to keep us cool when everything else heats up, offering a next-to-skin layer that works as hard as we do. Its featherlight feel and ventilating construction make it one of those pieces we forget about until we realize just how dry and comfortable we stayed. This seamless, body-hugging design enhances airflow and wicks moisture the moment we start pedaling, keeping sweat under control through long climbs and interval-heavy workouts. With soft, flexible materials and flat seams that sit smoothly against the skin, the Vertex Mesh delivers irritation-free comfort during our most committed efforts.