The Aqua Lung Express SS is an open-heel dive fin with a stainless-steel spring strap. The spring adjusts itself to the boot as the foot moves, holding tension without a buckle to reset, and it stays usable with thick gloves.
The blade pairs a stiffer central spine with softer side rails so thrust builds through the kick without the blade collapsing. The foot pocket is shaped for use over a dive boot, and the heel pad gives a stable contact point when donning and doffing on a moving deck.
