Gregory Stout 35 Backpack | Travel Backpack from Gregory | WEARABILITYVersaFit adjustable torso length with perforated 3D foam breathable backpanelPadded wraparound hipbelt with large zippered pocketsPerforated, breathable shoulder harness with sternum strap featuring an integrated safety whistleWishbone alloy frame for stable load management and torsional flexibilityReinforced bottom panel with dual layer constructionPOCKETS, ACCESS, & HELPFUL ATTACHMENTSZippered bottom sleeping bag compartmentZippered top pocket with underside zippered pocket and key clipDual-side durable mesh pockets with top and bottom compression strapsFront oversized stretch mesh pocket with durable fabric panelQuick-pull drawcord closure and top webbing compressionHydration sleeve with Speedclip hydration attachment system compatible with Gregory Hydro reservoirs (reservoir not included)Trekking pole/tool attachment point with bungee closure system