Help with bloating and underwear?

Thanks. I have trouble with having accidents as well.

When I’m bloated I prefer to wear loose boxers and sweatpants, or over-sized jeans

For me the softer and stretchier the better. I have some pants that are a couple sizes too big so my belly has room to grow a bit (just sweatpants and pj pants). I like to stick with cotton just because it’s soft and breathable. The heavier the material and the higher wasted the pants, the more uncomfortable I usually am. If you’re looking for specific underwear brands I like fruit of the loom just based on options in material and cut.