VentBack Backpack Airflow Frame Dormitories it features a leak-proof zipper

it features a leak-proof zipper and a convenient carabiner for easy attachment to your carry-on

this durable computer bag with a shoulder strap combines savvy style with executive-level functionality

All of the external components are high strength molded polymer

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Dimensions:  Adjustable from 36" to 56” in length

VentBack Backpack Airflow Frame Dormitories it features a leak-proof zipperYour pack carries your gear. This frame carries your comfort. The Vent Back Frame & Sleeve creates a hard working air gap between you and your backpack, so heat escapes and sweat doesnt stick around. Snap it on, cinch it down, and your regular pack suddenly feels like it came with a ventilated back panel from the factory. One rugged, universal frame handles the load while cushioned mesh rides easy against your shirt. No gimmicks. Just real airflow