The Exos 58 is deservedly one of the most popular thru-hiking packs ever. Nothing matches their carrying comfort, and as the days and miles pass, you'll always look forward to shouldering the load. AirSpeed(TM) 3-D tensioned mesh back panel keeps sweat down, strippable features satisfy the ounce-counters, and convenient features like Stow-on-the-Go(TM) trekking pole carry make ultralight backpacking ultra convenient. Our All Mighty Guarantee means you can rest assured we've got you covered if anything happens on the trail. Stripped weight - 2.33lbs, 1.06kg. Removable floating lid with top-and under-lid zippered pockets for storing smaller items. Integrated FlapJacket(TM) protects packed gear when top lid is removed. Stow-on-the-Go(TM) trekking pole attachment allows you to stow your poles in steep terrain or whenever you need your hands free. Dual access stretch mesh side pockets for storing water bottles and other gear with InsideOut(TM) side compression straps. Front stretch mesh pocket stores rain gear for easy access when skies darken, or wet gear after the downpour stops. Top lid web loop attachment points for external gear storage. Ice axe attachment with bungee tie-off. Removable sleeping pad and side compression straps. Accessory cord attachment points for external gear storage. Sternum strap with integrated safety whistle.