Comply Foam 100 Series Replacement Ear Tips

I own a pair of Shure headphones, and I don't really think you can go "wrong" with either these or the Shure tips. However, I would definitely purchase these first because: -They are a little more comfortable in the ear -They are easier to get a perfect seal with -The wax-guard is fantastic (think... no more need to clean out the grossness deep inside of your canalphones) -They will make your headphones sound better (mostly as a result of the previous three reasons) Now, to answer the questions I myself have had at some point: -The foam is a little different than the kind Shure uses. It seems to be a little firmer... until it is placed in the ear, where it feels softer and a little more comfortable. It's also slightly more resistant to wax in my experience, and is a quality product that can withstand daily use. -They aren't tricky to apply. I was worried that the fit on the headphones themselves would be too tight or too loose (the former being annoying and the latter literally making the foams useless). I can only speak for SE Models, but the fit was perfect for me. The build is a tad different, as the foams feature a slightly thinner and flexible core tube... but this doesn't really change the ease of applying them in comparison to the Shures. -For Shure owners: the "one size" of these roughly equates to the medium Shure size... they are themselves a tiny bit smaller than a medium Shure foam, but it is very close. I will say this... I wore the mediums AND larges for my Shures (mediums preferred), and the smalls wouldn't fit quite right... but these create the best seal by far that I have experienced with any IEM tip. If you are hesitant about the fit, go to the Comply website. They have three different sizes for all of their models. -For non-Shure/non-foam users: soft foam is generally better than flex tips/silicone/hard foam, but it depends on your ears and your preferences. For most, it is the best blend of comfort and sound quality. The foam (if fitted correctly) is not painful on the ear at all after prolonged use and will not cause headaches. The fit is crucial in getting good sound, just like pretty much any other tip. If the build quality is good (like these), there is little to no change in frequency response in comparison to silicone. -The sound quality with these is better than with other foams, and this is why- they are designed to give a better fit and keep wax out, allowing earphones to stream more pristine audio as a result. Earphones with these tips will sound more "open" and clear, and even the discerning ear will probably notice a wider soundstage with their current headphones. -Sound isolation is close to most foams, but a little better (for me) because they seal so well. For users who want premier sound isolation, these will suit your needs very well. -The 2dB of transmission loss with the wax guard is virtually a non-issue, especially since ear wax within the audio canal is much more detrimental to sound quality than anything else. Overall, I do not hesitate to give these a five star rating. If you are interested in these or are even on the fence, I would stop reading this review right now, place them in my cart, and checkout. Happy listening!