Surfboards Etc – Rip Curl Surf Series Roll Top 30L Backpack – Black – New>. Rip Curl Surf Series Roll Top 30L Backpack – Black – New. We are an authorized dealer for every item we carry. The Surf Series Roll Top Backpack by Rip Curl features fully welded construction to function as a wet/dry bag. A mesh front pocket, padded backpanel, and sternum straps complete the design. Made from 450 D polyester Rip Stop with TPU coating.