Here is a link to sizing information provided by Fly Racing
Fly Racing Evolution DST Zen Jersey
$64.95
PERFORMANCE:
- Laser-cut perforations for advanced ventilation
- Full mesh back and integrated mesh in key areas
- Zero-cuff arm openings provide unrestrictive mobility
- Multi-directional Lycra® neck and shoulder panels
CONSTRUCTION:
- Low profile multi-panel construction for maximum performance and a comfortable fit
- Seamless armpit construction, with a single- continuous stretch mesh panel from the sides to cuffs which help prevent underarm irritation
- Silicone-printed tail keeps jersey tucked in
FIT:
- Pro fit: ergonomic arms created for riding position, with a slim cut