There's a place for everything you need in this versatile, all-utility 28-liter pack. This iconic design features a large main zip compartment with a floating, padded laptop sleeve and the front compartment features an interior organization panel to stash smaller items. 600D polyester, 1200D polyester, 450D x 300D heather polyester, 600D geo emboss polyester The FlexVent™ suspension system boasts custom injection-molded shoulder straps and a padded mesh back panel with a spine channel for maximum support and ventilation Floating padded laptop sleeve in main compartment Secondary compartment has interior organization with a secure zippered pocket, pen pockets Reflective bike-light loop, reflective water bottle tabs and reflective shoulder strap webbing create 360-degrees