It is made of water-resistant fabric. our product is designed over 5 independent areas as a compartment with a special laptop area, a 2nd compartment that creates the main area, a 3rd compartment with a special pen holder and an organizer, a front and lower pocket with sponge support. each compartment of our product is with sponge and lining. it is coated and supported. there is a sun-proof drinking area on both sides of our product. the back area and arms of our product are completely orthopedic and do not sweat. product dimensions 47x31x22. our product is top quality. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.