Castelli Medio Base Layer Short-Sleeve Top

What Our Gearhead® Experts Are Saying:"The Medio Base Layer Short-Sleeve Top has become a go-to for those in-between days. It’s warm enough to keep the chill off, but it never feels bulky, and the moisture management is excellent—perfect for layering under a jersey."We’re always on the lookout for versatile layers that can handle cool rides without weighing us down, and the Medio Base Layer Short-Sleeve Top hits that sweet spot. It’s crafted from soft, sanded 190 g polyester stretch fabric that hugs the skin for next-level comfort and moisture control.The crew-neck collar sits smoothly under any jersey, and the trim fit ensures easy layering without bunching. From cool spring mornings to crisp fall afternoons, this base layer keeps us comfortable and focused on the ride ahead.