baby bands are mini sunglasses for babies... Belly bands are like a wide stretchy cotton/elastane belt that help bridge the gap between your tops and pants/skirts if you dont want any skin showing, they also work as an added support after you've had baby to hold the leftover bump in... oh and if you wear your normal pants and they get a bit tight, you can undo button/zip and cover it with the belly band so noone knows your pants are undone