DEVASTATOR KEVLAR VEST from Ugly dog is what I have run for the last couple of years and it has worked perfect. I havent had one cut through the vest covered areas. I would recomend it to anyone.
I have 7 of these vests and use them 4 or 5 days a week.
http://stores.intuitwebsites.com/WildBoarUSA/-strse-91/J.-DEVASTATOR-KEVLAR-VEST/Detail.bok