SnapAid - Snap Reinforcement Fabric (W-223)

It stops my snaps from popping out of knits

Oh I wish I had found this stuff sooner. It makes snap installation easy. It’s not iron on though, so you have to attach it somehow. I zig zag it to the side of the placket, but you could probably use some other method.

Easy to work with and stabilizes snaps well

I use this to stabilize the snaps in cloth diapers