Backpack Structure: There is a patch pocket on each side of the chest pocket, which can hold umbrellas, water or glasses. The shoulder straps are light and take the pressure off the shoulders. Adjustable padded shoulder straps make this backpack fit for most people. 

Lightweight and Durable Strap Backpack: This casual one-shoulder strap backpack is made of lightweight, breathable and durable polyester material, splash-proof, wrinkle-resistant, effective against tearing, getting wet and tearing, suitable for women and men, perfect for a day at the theme parks and more.

Measurements:

Bag is 16" in height, 10" in length and width is 4"

Strap is adjustable from 31" to 40" in length and can be hooked for either the left shoulder or right shoulder for added comfort.

Details:

Bag has smaller front pocket with zipper, 2nd pocket area with clip at the top to close and then another larger area with zipper.  There is also a mesh pocket on each side that can accomodate a water bottle, cup, umbrella and more.