Our jerseys are race fit, a form-fitting cut that sculpts to your body. If this is exactly what you want, please order according to our size chart for the perfect fit. If you prefer something more loose or relaxed, order 1 size up from the suggested size on the size chart. 
For your guidance, our sizing is similar to other cycling brands like Castelli and POC. If you already own one of their jerseys, you may use this as a reference point when deciding on your size.