Awesome Ear Plugs
I have tried a vast array of different earplugs over the years, spanning from inexpensive single-use foam plugs to some of the higher-end silicone models (though I've never sprung for custom fits from an audiologist).<br /><br />I play music in a couple of bands, and go to shows relatively frequently, so I try to find plugs that meet a few requirements:  (1) they form a good seal, (2) they're comfortable enough to be worn for hours on end, and (3) they don't completely inhibit conversation or awareness of the environment.  I also prefer to find plugs that are (4) relatively flat in frequency response and (5) have minimal profiles when inserted to avoid unwanted jostling, though these are preferences, not hard requirements.<br /><br />Simply put, these plugs are hands-down the best  in categories 2-3 and 5 I've ever tried.  The double-flange silicone forms a comfortable seal, and the plugs themselves aren't easily jostled or start to come loose if I sweat or move around.  For category 1, the plugs don't beat out the one-time foam, or other heavier re-usable products like Hearos Skull Screws, but they actually come quite close to that level of sound rejection, while also far and away more comfortable and much flatter in frequency response.  These are real winners in my book, I recommend them to my musician friends all the time.<br /><br />My one complaint is that the key chain case is a little awkward to open/close.  Unlike the more common squeeze case you see with Etymotic or similar designs, these cases require two hands to open/close.  The trade-off is that while it's more difficult to operate (and I personally cannot do it one-handed like the squeeze cases), the case provides a better seal to protect from outside dirt and moisture (I believe the case is even water-tight).  So that makes this a relatively small inconvenience, and the case does perform the tasks it's designed to do.
Rating: 5 stars