Castelli Pro Mesh 2.0 2023 Sleeveless Base Layer

The barely-there Pro Mesh .0 Sleeveless Base Layer is the warm weather version of Castelli's Tour de France winning model, made from light D mesh fabric for optimised moisture management in mild or hot conditions.

Unlike many base layers, it has a comfortable flat hem at the waist which won't show under shorts, and it's made to fit under a sleeveless or short sleeve jersey unobtrusively. When you remove that jersey, though, its anonymity will cease, since it's printed with an all-over graphic in fun colours.

Features

• The sleeveless version of the base layer worn by Castelli's pros
• Designed for a wide range of mild to very warm conditions
• Made from airy, D mesh that disperses moisture and promotes cooling
• With striking, sublimated print shades
• Invisible under shorts, thanks to its flat hem
• Castelli comfort rating of 15-°C