Details MATTER! With a built in 5.7 inch pocket that allow you to access your smartphone without the need to open any section. Not only that, with many of us working off tablets (iOS, Android or Windows Surface) the tablet slot with a clear screen means you can now work off your tablet WITHOUT taking it out of the bag. Bike Messengers, couriers, delivery guys who have to work come rain or shine, this bag is designed with you in mind. The Excelsior is made of 400D Ripstop Nylon. Reflectors even on the zip, highlighter inside flaps to enhance the visibility of you if you are stopping to look at your device and mesh on shoulder flaps and back of bag. Many sections that hold documents, cars, keys etc Touch sensitive window for access to tablet. Size is 400x 260x 90mm.