The perfect dry bag for your adventures the spacious 60L capacity Expedition Series Daypack from Fourth Element with two dry compartments is perfect for any diver. 

The bright colours make it super easy to identify your bag, and then to find gear inside the bag due to the bright interior. 

The main compartment of the bag gas a roll top to ensure everything stays dry, with adjustable straps so you can alter the size depending on how much is packed inside. The outer waterproof pocket can be used to separate items, such as wet and dry things following the dive. In addition to these two compartments, between the two is a hidden fin pocket, sized to accommodate all dive fins and even most free dive fins. 

A well designed carrying system ensures your comfort with shaped and padded should and hip straps, as well as a contoured back panel for air flow.