Castelli Espresso 18 Sock Kit Complete When you've already committed to the Espresso kit, the sock should feel like the last piece that was always supposed to be there. The Espresso 18 Sock is built to match the rest of the line, with an 18cm cuff that hits the right height for road riding without creeping into tri-sock territory. Technical construction keeps it durable through regular use, so this isn't just a display piece for kit photos. Features18cm cuff height sits at the classic road-cycling sweet spot Technical constructionwith a nylon/elastane mix, for the right level of comfort and performance Espresso kit colorway matchis designed to coordinate with the full Espresso line | Castelli | Espresso 18 Sock Men's | Size Xx Large In Smoky Gray | Nylon