Gregory Wander 30 Backpack | Travel Backpack from Gregory | VersaFit adjustable torso to provide the proper fit for growing HikersSeamless hipbelt design for Hotspot free comfortPadded, 3D foam backpanel to provide close-to-back breathabilityPerforated Foam shoulder harnesses for breathability and an integrated safety whistleFront stretch mesh pocket with durable fabric panel for abrasion resistanceTrekking pole attachment system with adjustable bungee closureDual side stretch mesh pockets with top compressionHydration sleeve with with universal hydration hanger and integrated hydration hose routingReflective upper and lower attachment loops for visibility and clip points