7 year old boys keep having accidents 😞

Idk what to do. My 7, almost 8 year old twin boys keep having poop accidents in their pants. No pee accidents, just poop. And it’s never like a whole poop-it’s almost like they don’t catch it in time-or something. Idk. I’ve asked them what’s going on, and they say they don’t feel it coming. Idk if they just get so distracted doing other things, or what. But I’m at a loss. They’ve always had small accidents...but it seems more lately. I don’t want them to be the “poopy kids”. Help!!