Castelli’s Core Mesh Sleeveless Base Layer is their hot weather base layer and is designed to help you stay cool and dry thanks to its open-mesh structure.

The mesh keeps your jersey off your skin, creating a layer of air to regulate body temperature, and also ensures very little moisture is absorbed by the fabric.

The base layer is designed with minimal seams to improve comfort and the base layer has a long cut which Castelli says ensures it stays tucked into your bib shorts. While one of the most expensive base layers in our round-up, it’s still a smart option for truly hot conditions.

Price: £35
Website: Castelli