I just started cycling and I love it. Izumi makes good stuff, I have her shorts and tights. The medium jacket was too tight (I wear a 41 suit) so I sent it back. The Revain returns process is GREAT, the label is pre-printed and mailed. The large jacket was delivered slowly, 3 working days from order to dispatch. It arrived at my house in 8 calendar days. Coming back to this jacket, the workmanship is superb, the stitching is even, the tailoring is tight. The large fits better, slightly looser in the chest and arms, it is long enough with a good support around the waist, the sleeve length fits a 34 inch sleeve length. I drove last week and it was 55 degrees Fahrenheit and I wasn't cold. The only thing I didn't like about this jacket is that the back pocket is a bit small and difficult to reach, but it has a small velcro closure. It is ideal for storing a mobile phone inside. Energy bars fit, just be prepared to dig a little behind. Good Trip!