The Loop 15X is all about providing a relaxed and highly comfortable way of breathing. This patented second stage is symmetrically designed with a central, vertically oriented, hose connector. The intermediate pressure hose connecting the second stage with the bottle does not run over the diver’s right shoulder as customary but under the arm thus preventing the jaw muscles from getting tired. Thanks to the symmetrical structure, the Loop can be carried on the right side as well as on the left side.