Wee Notions Side Snap pockets are available in several sizes and fasten at the sides with poppers/snaps. They have a built in waterproof layer and a "pocket" to add an absorbent insert (inserts are not included but are available to buy separately).
See HERE for more information including sizing tables.
If you're new to cloth nappies, see HERE for the Wee Notions Cloth Nappy User Guide.
If you would like some help ordering a custom made nappy click HERE.