Utilizing our ABS (Adjustable Back System) precision fit for this 65L Capacity + additional 10L expansion. Suspension harness evenly distributes the packs load with class leading comfort. Firm hip belt and shoulder straps make for sturdier more comfortable fit. Microtex Core 200D fabric provides lightweight durability with 1000D adding strength in high wear areas. Split toe hip belt takes pressures off nerve endings on hip bone for greater comfort. Removable lid doubles as toiletry bag or first aid kitFlight mode zipper entrance lets you pack like an open suitcase. Convenient expandable front mesh pocket for easy access to necessities. Padded shoulder straps easily adjust for precision fitSide compression straps maintain the stability of the pack under load. Sternum strap keeps pack secure, while the emergency whistle offers a convenient distress signal. Walking pole loops keep your sticks tucked neatly out of the way when not in use. Side expandable pockets, one offering hydration bladder output. Stretch mesh side pockets capable of housing a large water bottle. Removable rain cover located in zip secure base section.