Okay, maybe you’re wondering “I keep hearing you talk about flats but how the heck do I even use them???” You’re right. I should explain. So flats, historically would be used by folding the fabric into a shape to pin on the baby. Like in this clip art below:
Now, there are so many ways to fold it for your baby. You could padfold (simply fold into a rectangle) to put into the diaper cover, you could use the popular origami fold which really helps keep newborn poop in place or you could even fold a t-shirt as demonstrated in this link. In this video posted on IGTV, I demonstrate two of the folds I use the most on my baby.