I purchased this jacket in red as a runner/bicyclist. I train in the Chicagoland area for races and triathlons and ordered this jacket as a lightweight layer over running/bike clothes on cool and cold days.  Since I recieved the jacket I have worn it often on runs and bike rides. The jacket is slightly longer in back to keep coverage when biking. I get very hot running, the sleeves come off VERY easily and stow in the large poket in the back.  In addition, after a run, when I am doing a cool down walk and I need to put the sleeves back on, they are just as easy to re connect, no fuss at all. I can do all this without stopping my run or walking.  On windy days this jacket has done the trick to keep me warm in gusts over 40 mph. One day, as I was out biking, I hit a rain shower, this jacket worked perfectly to keep my dry and warm.  There are two side pockets in which to stow keys, gloves, etc., they are ample size. I have found some jackets to have really small pockets, the pockets in this jacket are perfectly sized for a few gel packs or whatever you might need during a training session.  This is my new favorit jacket for all my activities!