No More Tiny T-Shirt Holes! WhollyCoveredButton covers are washer and dryer safe. They're meant to be snug - you don't want them to fall off - so it takes a little effort to get them on the button (but we think it's worth it). They fit all standard size jeans/pants buttons. Over time, the button covers take the wear and tear instead of your shirts!! When the covers start to wear thin, it's time to replace them to continue saving your shirts!