The Miamica bikini bag shown is made of blue terry cloth material.

Exterior: The exterior is a terry cloth fabric

Interior: The bag features a separate plastic or waterproof compartment on one side to hold wet items and prevent leaks into the rest of the bag or other belongings.

Measures 12x12x1

What makes this so great are the two compartments as well as it is actually large enough to hold swimsuit goggles and sun tan lotion

I have another one that I keep in my gym bag