As one who has used Northshore products for years now, I recently ordered some InControl products (Bedry Premuim (Day). Capacity wise they are great, super smooth and comfortable on the inside but like others have stated a little snug. I normally wear an XL Megamax or Megamax Airlock, both fit me very nicely, the Incontrol/Rearz brand in the same size is just a little smaller. I can still wear them, but they are definitely a little smaller in size. It's always best to try samples from anyone first, that way you know what the fit will be and see if it works for you.