Flat and shallow, sizing allows for semi custom fit
These have have worked out well for me. I bought a swim cap that is large enough to cover my ears. It still doesn’t keep the water completely out though. The ear plugs I had previously have a stem that stick out a centimeter or so. Those did not work with my swim cap.  Also, my external auditory canal’s are of different sizes with one smaller than the other. These plugs are nice and flat and shallow meaning that they are comfortable to wear while my ear is still covered by the swim cap and the internal plug part is shorter than my other earplugs so it doesn’t feel like they are going to touch my brain. Also, the different sizes available for a semi custom fit. They are easy to take out (don’t seem to create that horrible suction that my other plugs did).<br /><br />To be clear, there are three pairs (3 sizes) of plugs all with a hole in the center for the black center plug, so they are only good for one user. They do allow me to hear a little bit better than it traditional ear plug, however the sound is still a little bit muffled, especially when you just come out from the water. It did come with a nice little black case to keep it all together. These are very small (as all earplugs are) so must be careful to keep them altogether.
Rating: 5 stars