I now have three of these jerseys and they are a foundational piece in my kit. They layer great under a jacket (7 Mesh) on cold (for California) days, work well as a stand alone jersey on a cool day for me, and vent and dry really well too. I use these much more than short sleeve jerseys with arm warmers. Oh, forgot my favorite thing... they lined the freak'n pockets, so "stuff" like phones, extra water bottles, tools slide in/out! I hate in other jerseys when I reach back and the damn fabric grabs the item I'm trying to put back into my pocket! Honestly, just an amazing product.