Looking for a dry bag that can also serve as a grocery carrier or an adventure pack? DeMar Designs’s new Cortez backpack is well worth your attention. The backpack features open-mesh construction (with some nylon paneling), a generous vertical zipper opening that allows top-to-bottom access, accessory pockets, compression straps, an internal pocket for a hydration unit (not supplied), a removable waist belt, and a padded back panel. But what’s really innovative is the pack’s removable clear-plastic liner, which has a dry zipper and a nylon grab loop. $175. Demar Designs, 850-532-5212, www.demargear.com