We've made this easy for you with our Castelli size guide. For more details on how to get the right measurements, check out our clothing size guide. Note: Castelli are a premium clothing brand that focus on performance clothing with a close fit. They size their clothing small, so for the best fit, go up one size.

Taking your measurements with a tape measure and matching them against Castelli’s size charts is the best way to check which size to go for. If you do this the fit will be exactly as the Castelli pattern engineers intended. But there are also other factors to bear in mind to ensure you get the fit that, most importantly, you desire.