The YakGear YakSack allows you to hold items where they are easily accessible and will be kept safe in a number of places on your vessel. With an inside water-resistant pocket you can zip up and store your wallet, keys, cell phone or something you want to keep dry, and 4 outside mesh pockets (2 on each side), there's no lack of storage! Having an IP64 rating, the YakSack is fully splash proof and water-resistant when the zipper is fully closed. The YakSack is able to be mounted on any rail (smaller than 2 inches) or seat frame you may have on your kayak or boat with the attached buckles and adjustable straps. It is also able to be track mounted with the included SureMount T Bolt (2 pieces) hardware that will slide on most kayak tracks, including the 2018 and newer Crestliner SureMount Tracks. Installation instructions are included, as well as mounting hardware for most kayak tracks. (Does not fit Feel Free Tracks)