Aarn Sports Balance Pockets are designed for active adventurers who want a no-fuss approach to increased comfort, stability, and energy savings. They can be attached to any Aarn Pack with a U-FLow harness. So while using the whole Aarn Packs System, your body will love you after a day on the trail. The Sports Pockets come with two mid-sized pockets, with dry liners included. As a result, you can easily add heavier, bulky items into these spaces to increase the Balance of your Aarn Pack System. Highly water-resistant Dry Liners included Four mesh exterior pockets Converts to a daypack with Daypack Conversion Straps Daypack also carries on the front for security and easy gear access Fabrics - Main - 210D Nylon Ripstop Bottom - 210D Robic Gridstop with UHMWPE Liners - Nylon 190T Dimensions - W 17cm x D 12cm x H 32cm (S) / 37cm (R) W 6.7in x D 4.7in x H 12.5in (S) / 14.5in (R) Litres - 10L in pockets (S) 12L in pockets (R) 2L in outside mesh pockets Pocket Weight - 296g or 10.44oz (S) (+ liner and daypack straps) 320g or 11.28oz (R) (+ liner and daypack straps)