Deuter Giga Bike Backpack Polyester / Nylon Imported ENGINEERED WITH INNOVATION - Deuter's Giga Bike pack brings together all around versatility and advanced ergonomics to deliver optimal comfort and performance through anatomically-sound construction OPTIMAL AIRFLOW - Deuter's Airstripes System is secure and snug, while offering effective ventilation; 2 contoured, air-channeled foam encased in a breathable mesh lining reduce contact with your back; A channel between the pads pushes warm air away and draws fresh air in, keeping you cool through your rush hour commute STORAGE OPTIONS - This everyday backpack was designed to keep your school or office essentials organized; Main compartment is sized to fit folders and documents and second compartment fits a 15.6-inch laptop; Built-in organizer, plus a detachable key holder BUILT TO LAST - Made from Super-Polytex and 330D Hybrid Check, the Giga daypack delivers lightweight, high-performance durability; PU coating makes this backpack water- and abrasion- resistant, ensuring it'll work as hard as you do SPECIFICATIONS - This 28-liter pack comfortably carries up to 15 lbs (6.8kg); Zipper closure with side compression straps for volume adjustment; Features padded base, brightly colored detachable raincover, stowable helmet holder, load adjustment straps, and 3M reflectors