I love exercising in the Spring, and even though it's warmer than it was a month ago, you still need to wear some kind of layer to keep you warm. You don't necessarily need a big long-sleeved jacket, so this is the perfect time of year to sport a vest.
Check out this one from Salomon. It's made out of "ActiLite," a fabric that is abrasion resistant, moisture wicking, and breathable. When you're working out in cooler weather, you need something like this that will wick away moisture from your body, because if you get wet, the cool air will make you colder.
There are 2 hand pockets and a chest pocket with a hidden zipper. I love a lot of pockets so I can carry my keys, my cell phone and my iPod if I want.
This vest is made for women, so it has a slim, flattering cut. It comes in black, white, apple green, or tropical blue (as shown). For only $55, this Salomon vest sold through REI.com is a steal.