These diaper pods are made by Happy Flute and are two layers of PUL - a solid white layer inside and a printed layer outside.
There are two handles to attach a strap to if needed. They have a single zipper on top.

Diaper pods hold between 4-6 diapers, depending on thickness, and measure about 9 inches long and 5 inches tall. They are washer and dryer safe.

They can also be used for spare clothing, snacks, makeup or other toiletries, fun toy storage, or a number of other uses!