and large mesh panels on the chest

this is reinforced even further with the Nucleon Flex technology layer on the central back zone

and low weight

plus a pocket for a separately purchased back protector

at 15 back pack aluminum walnut Color:Aluminum Walnut and large mesh panels onBuilt for adventure riders, the AT 15 Backpack combines rugged 900D reinforced construction with 15L expandable capacity engineered for extreme off road conditions. This technical pack features a dedicated storage compartment for Tech Air System replacement canisters and an ergonomic pre shaped back panel for superior stability and reduced fatigue. Includes magnetic chest lock for quick adjustments, hydration system compatibility, and packable