Ordered medium based on other comments. Still too small
Quality and workmanship of the jersey is great. Material is suitable for hot climate with a mesh fabric at the back.
However, sizing is the problem. I'm 36'" at chest and have sized up to a Medium which is for 37'" chest but its still too small for me. The sleeves are long like how they are meant to be. Would like to swap it for a bigger size but I ordered it from overseas so too much hassle with returns.
Runs a little small ( I need to loose some weight) great product
Bough size M for 5'10", 150lb and fits perfect for aerodynamic rides