Personal aquatic equipment for recreational and professional use. Our Brands: Aqualung, Apeks, Omer, Aquasphere, Stohlquist, U.S. Divers. Aqualung Group pioneered the creation of modern diving equipment in 1943 when Captain Jacques-Yves Cousteau teamed with Émile Gagnan to develop the first “aqua-lung” that made underwater exploration possible. Today, the brand continues to be the leading global designer and manufacturer of dive and water sports gear. With a deep commitment to quality, research and testing, Aqualung Group has revolutionized the scuba diving and swimming experience by setting industry standards for consumers in technology, comfort, safety and design.