Very warm in the summer, but perfect for fall,winter, and spring.
This vest is absolutely awesome! It looks and feels great. It's got pockets for everything. It lets you adjust everything from it's fit, to how the pods are attached. Whenever I play without it now I feel so vulnerable. Definitely worth the money. It's even got a pocket for a radio with a hole for the earpiece wire to come out.
If I had known how great this product was I would have ordered one sooner. I definitely recommend getting one. I got mine from 3gponline.