Castelli Pro Mesh M Sleeveless Base Layer - Black
Apparel
Castelli Pro Mesh M Sleeveless Base Layer - Black
Castelli Pro Mesh M Sleeveless Base Layer - Black
The Castelli Pro Mesh M Sleeveless Base Layer is built on the same foundation as the base layers trusted by WorldTour pros. Read the overview
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Overview
What Makes the Pro Mesh M Sleeveless the Best Base Layer?
The Castelli Pro Mesh M Sleeveless Base Layer is built on the same foundation as the base layers trusted by WorldTour pros. Its 3D open-mesh construction wicks sweat off your skin and pushes it outward to your jersey so you stay dry and comfortable on long efforts. The sleeveless cut eliminates bulk at the shoulder while keeping core temperature regulated during hard rides. If you have ever finished a ride soaked through a regular shirt, this is the antidote.
Made from 100% polyester mesh with flatlock seaming throughout, this base layer is engineered to sit close without compressing or binding. It layers seamlessly under any cycling jersey and washes easily without stretching out of shape. The black colorway stays invisible under dark jerseys and resists visual wear over time. Ideal for road and gravel riders who prioritize thermoregulation and moisture management on four-season training rides.
All the specs
- Material
- 100% polyester open-mesh
- Sleeve
- Sleeveless
- Fit
- Trim / performance
- Collar
- Crew neck
- Color
- Black
Good questions
Get to know Castelli
There's more to Castelli than this one product. Our Castelli page has the full Castelli lineup we carry and more about the brand.
Visit the Castelli page →Do I need a base layer for summer rides?
Yes. A moisture-wicking mesh base layer pulls sweat off your skin faster than a jersey alone, keeping you cooler and preventing the clammy feeling during and after hard efforts.
How does the 3D mesh construction differ from a standard base layer?
The open mesh creates air channels against your skin that accelerate evaporation, making it more effective for thermoregulation than a standard flat-knit synthetic base layer.
Can this be worn under any cycling jersey?
Yes. The sleeveless cut and slim profile fit cleanly under road, gravel, or mountain bike jerseys without bunching or creating visible lines through the fabric.
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