The strong and durable lightweight nylon taffeta fabric is water repellent and also blocks UV rays. You can wear it as shorts by removing the hem from the zipper on the thigh. Since the left and right zipper colors are different it will not be installed incorrectly. In addition the zipper vertically attached to the hem can be fully opened so it can be put on and taken off while wearing shoes and when opened it becomes ventilation. Reflector stitching provides night visibility.