Love this product- only thing you need to be aware of is that the large, at its smallest, is the same as the medium at its biggest; so if you're deciding between the two, go medium.  I ordered both, thinking I'd need the various sizes as I 'downsized' myself, but it's really redundant to have both.  I would imagine the same would go for XL and Large.  Kudos to LLL for making a binder that has quite a variety of sizing options in ONE binder!  I think the velcro area is 9" wide, so that provides for a lot of movement in shape postpartum.  Very soft material, very comfortable, looks very well made.