Brooks Brothers Grant Backpack, Heather Grey Color:Heather Grey Pen not included water resistant bottom Dimensions Pen not included Can be zipped in and secured by snap attachments inside an outer Collective layer 94 6 poly spandex woven mini ripstop with a DWR finish bonded to a water resistant film insert and a 100% polyester brushed tricot interior 1000MM fabric waterproof rating 1000G M2 fabric breathability rating Slightly longer length Vislon ® center front zipper Front reverse coil zippered covered pockets Two tone 600D polyester canvas Genuine leather trim and details Metal zippered main compartment Padded back laptop compartment Zippered top A dedicated back compartment is padded to protect your tech while organizational pockets give you a place to put all your essentials