This is my absolute go-to jersey for rides that start in the 40s or lower. It keeps you warm when holding still but still dumps heat when you're moving. The pockets are great, and the side zip is nice for a little extra heat dump. Long enough in the back that you don't get dirt down your crack. My only knock is that the sizing is way off - I'm 5'8" 165 lbs and wear a medium in almost everything, but the medium in this fits snug like a baselayer. Not just around the belly, but chest and arms too. That said, it's such a great piece of gear that I'm getting a second one sized up to a large.