The bag did not come very quickly. The size is medium, i still like it. The material is fabric, and something similar to straw, pleasant to the touch. The main compartment closes with a zipper. Inside there is a pocket where you can put either a phone or cards. Does not close with a zipper. The strap is not adjustable, can be worn both on the shoulder and over the shoulder. For the summer the most, i still like it.