This origami-style pouch is simple shaped as a long envelope pouch, which has triangle structure to it. Four triangle pouches make a square, and the lovely symmetry of it lends itself to being rolled up! Each pouch is backed with snaps. You can take the whole roll with you or unsnap and take just what you need. Made out of kraft paper fabric, the roll is washable and durable and softens the more you wash it.