We currently only sell one size of foam filling. We have noticed that some of our customers prefer a smaller bulge and that the edges of the foam can be a bit hard which makes them itchy. We recommend cutting the foam with sharp scissors (to avoid fraying) layer by layer until the packer is the perfect size for you. Cutting the foam insert will give you a smaller bulge, and will not damage the foam nor the boxers in any way. Many of our customers trim the foam at the sides and round the top and bottom for added comfort (as shown in the photo below). How you cut the foam insert is ultimately up to you, your preferences, and your needs!