I use the industrial foam plugs that a few of the companies I work with provide to their employees. They are a "one size fits all" plug connected by a string that meet all OSHA requirements and are as good as can be found affordably. I then place muffs over the plugs and that is the best I can do. I have moderate hearing loss caused by diving in my younger days and recreational shooting with no protection for 20 years or so. I have not yet found any of the Walker's type inserts that I can wear comfortably for more than 30 minutes or so as they ALL give me a headache. While hunting I keep a pair of the plugs around my neck and try to put them in prior to shooting but I admit I have forgotten to do that on occasion.