Blackcomb Ridge 18L Backpack Size:O S so you stay comfortable while 1000505121 so you stay comfortable while being active Zippered back mesh pocket secures valuables Mesh hand pockets store small items Drop in side pocket for quick access Drawcord adjustable elastic waist secures the fit Belt loops let you add a belt or carabiner Interior mesh briefs for breathability and comfort Uses: Fishing adjustable strap and a front accessory pocket for quick access to your phone or anything else you might need to keep handy Capacity: 1098 Omni Shield™ repels moisture and resists stains by preventing liquids from absorbing into fast drying yarns