Material: waterproof and durable nylon material and polyester lining. Occasion: work, business trip, beach, vacation, and daily life. Type: crossbody bag, satchel, work bag, travel bag. It has the following functions. 1.This material is waterproof, so you don't have to worry about your items getting wet in the rain, and it's easy to take care of. 2.There is enough space for your daily necessities, with many pockets to store and organize your items. Front pockets for easy access, side pockets for water bottles and umbrellas, and back zippered pockets for your cell phone, easy to access and more secure. 3.Reflective strips on the front zippered pockets are designed to provide a warning in the dark, increasing safety when out at night. At only 0.74 lbs, it is light enough to not add extra weight to your shoulders for easy and burden-free travel.