Decibullz sells a custom mold for the ear. Comes as a plastic mold that you drop in boiling water and then put in the ear and mold. Comes with 3 different sized rubber pieces and a foam piece for different ear sizes. I use the one they sell for "surveillance" and can switch the plug when I go shooting. They are custom molded to you ear so they are more comfortable when wearing for a long time.

Here's a link to the product on Amazon. https://www.amazon.com/Decibullz-Earplugs-Comfortable-Protection-Shooting/dp/B00WIXL46Q?ref_=ast_sto_dp