Beach, overnighter, school, workout, etc., cinch and go with a Dakine 16L Cinch Pack.  The 16 liter pack has just enough space for quick-trip essentials.  The top opens wide and the bag stands up on its round base for convenient access. 

The rope drawstring closure doubles as shoulder straps for hands-free carrying.  Made from 600D recycled polyester, a plain weave with print and water repellent finish and bluesign® approved material.  Dimensions are 17" H x 14" W x 7" D which equals 977 cubic inches or 16L.  Colors are Emerald Tropic, Night Tropical and Ornamental Deep Blue. 

Care: if your Dakine bag gets dirty, we recommend hand washing with mild soap (like Nikwax Tech Wash), cold water and a soft bristle brush.  If hand washing is not going to do the trick, use a front loader washing machine.  To ensure your backpack doesn't get tangled, place inside a pillowcase or mesh bag before washing.  Always use cold water, mild soap and run on a gentle cycle.  Never bleach your pack.  Hang to dry in a warm but shady place, ensuring both inside and out are dry before storing.