[ Tsuna definitely didn't care about the stitching. As long as it holds together, he has little interest in it.

He nods at Makoto as he lists off other ways he intends to issue the demonstrations. Though Tsuna is curious of one of the methods. Rough fabric?]

Uh, what would the rougher fabric show? Like if it starts to pile or tear against it?

[He can see how some material could ruin delicate underwear. Tsuna thinks of something else, it's one thing to do an event like this, but how are they going to get people to pay attention?]

How should we draw people in? People might feel weird about testing out underwear in broad daylight.

[At least he feels a little weird about it.]