I have two vests currently....one is a Patagonia mesh shorty ( http://www.patagonia.com/ca/product/patago...g?p=81955-0-176 ), which I like for its lightweight coolness as I tend to get over-warm easily on hot days, but I am not thrilled with the pocket-closure style. The other is a more vintage cotton vest with a ton of pockets, which I wish were cooler, because I love the amount of storage and style of pockets. My quest for my perfect vest continues until I have a perfect combination of just the right number and style of pockets combined with fit and lightweight coolness.
That being said, my fiance has a Redington fly vest ( http://www.redington.com/Clark-Fork-Mesh-Vest.html ), and she really loves it, and we both have Redington jackets that we like very much.