Since my rollover and arm injury, I wear a pair of cheap rancher leather gloves to protect a spot on my palm that is grafted skin from abrasion like climbing fence posts cause...
Other than that, blue jeans and a long sleeve shirt do pretty well protecting from the briars. Many have tried snake chaps just to retire them due to the heat. When it is cool enuff for the chaps, the snakes are hibernating
The catch dogs wear the real gear... 3 or 4 layer "cut collars and vests". These will have 2 layers of kevlar inside 2 layers of heavy nylon. A new product is called turtle skin which is replacing one layer of kevlar.