There are two ways to wear the apron. First, there's the cross-back option. For that, you would take the two straps with snaps and attach them to the rings at the top of the apron bib. Then they go over the shoulders, cross each other mid-back, and snap at the rings near the waistline.

The other option is over the neck. For that, you would only use one of the straps with snaps, hooking each end to the rings at the top of the bib. With that option, you can manipulate the length of the apron for smaller frames by snapping the snaps so that the length of the strap is almost doubled over.

For either of these options, you would take the remaining short strap and clip it into the ring at hip level, then thread the other end through the buckle on the strap that's already attached.