Great set of undies for Dildo Use
The M/L fits like an M/L, but on the smaller side. I’m a size 10 (sometimes 12) in ladies jeans/pants.
A dildo with a very large base might have a hard time fitting, as the hole is a certain size and not adjustable. However, it holds the dildo in place very well. The downside if you’ll dirty these while using them 😉 The upside is they’re soft and make the act smooth from start to finish.