Gregory Mountain Products Baltoro 65 Liter Men&rsquo;s Multi Day Hiking Backpack | Backpacking, Camping, Travel | Rain Cover, Hydration Sleeve & Daypack, Durable Construction | Premium Comfort on the Trail VENTED, FORMED BACK PANEL & LUMBARTUNE REMOVABLE INSERT: Vented, formed back panel features LifeSpan foam & silicone lumbar grip zone. LumbarTune removable 10mm insert offers user-customizable contouring for a precise backpanel fit. PRE-CURVED FOAM COMPONENTS & FREE DAYPACK INCLUDED: QuickSwap 3D interchangeable pre-curved LifeSpan EVA foam harness & hipbelt in multiple sizes to precisely fit each body. SideKick ultra-light, removable daypack doubles as hanging reservoir sleeve. FREE RAINCOVER & TOP-LOADING DESIGN: Included removable raincover stowes in its own zippered pocket. Top-loading design with front U-zip panel access. AMPLE STORAGE TO ORGANIZE YOUR TRIP: Double Barrel lid design with dual zippered pockets on top and security pocket underneath. SideWinder stowable ergonomic bottle holster. IDEAL USES: Backpacking, Camping, Hiking, International Travel, Adventure Travel, Trekking, Through Hiking - WEIGHT: 5.5 lbs - DIMENSIONS: 25.2" x 15.0" x 9.5"