Go from the beach to the office and back with the Nixon Ground Swell Backpack ($70). This rucksack is built with a large waterproof compartment with side zip access to stash your wetsuit, swim short, rash guard or board shorts. The Ground Swell features a padded reinforced back panel, waterproof wax pocket, stretch mesh side pocket, water resistant shell, waterproof taurpolin body and a large dry compartment for all other stuff.