Castelli Medio Base Layer Long-Sleeve Top

What Our Gearhead® Experts Are Saying:"I reach for the Medio Base Layer Long-Sleeve Top when the temps dip but I don’t need a full winter layer. It’s warm, wicks sweat super well, and the fit is trim enough to stay comfortable under any jersey."We’re always looking for that perfect base layer to keep us riding in comfort through those in-between days, and the Medio Base Layer Long-Sleeve Top delivers every time. Made from soft, sanded 190 g polyester stretch fabric, it’s warm without feeling heavy and breathable enough for long rides.The crew-neck collar keeps it classic, while the close fit wicks sweat away so we stay dry and comfortable from start to finish. Whether we’re tackling crisp morning rides or pushing through shoulder-season miles, this versatile layer is a must-have for our kit.