The present disclosure provides reusable diaper devices, systems, and methods. One diaper embodiment includes a diaper body layer, a first casing formed from one or more layers of material and positioned on the diaper body layer, a first channel is formed by the casing proximate to a first leg opening of the diaper and the first channel contains a first band, a second casing formed from one or more layers of material and positioned on the diaper body layer, a second channel is formed in the casing proximate to a second leg opening of the diaper and the second channel contains a second band, and a length of each of the bands is adjustable.
