Well last year I decided to hunt from the ground one day and while sitting on the ground next to a rock I heard something coming toward me. It was to early to see that far but I clicked off the safty ready for a shot as it was coming closer and closer. It was 10 yds away when I realized it was a fox. I thought about shooting it as it would have been legal but i was there for bigger game. So I let it pass within 8 feet of me and all it did was look and kept on going. So in my opinion the suits work.