Jerseys fit true to the size of the chest. If you are on the border of sizes and like a looser fit, we recommend going up a size. If you prefer jersey very close to skin (like road racing jerseys) choose a size smaller. This jersey is not designed to be worn with full body armour, but can accommodate elbow pads.
We recommend choosing the size only based on the chest circumference. Measure your chest circumference, when at rest (measuring tape passing under the armpits and across the nipples).