Been using the Game Hide ElimiTick pants & polyester shirt for the last 3 or 4 years. I've only had one tick to get on the back of my head or neck area. But I also spray down with insect repellant also. This season I also bought some Sawyer's permethrin & sprayed on my clothing & vest also. Can't really say if it works or not because I used the bug spray also. I would say it probably helps for a while but after so many washings I'm sure it loses it's effectiveness.