Palau introduces a new type of fin for snorkeling and swimming. The development focused on two specific needs. First, a foot pocket that accommodates at least three to four adjacent shoe sizes, allowing the same fin to be used by multiple family members or friends. Additionally, it should simplify the process of borrowing fins at a diving center or on a charter boat, avoiding the need for numerous sizes. Another goal was to enhance comfort and enable quick on and off, even for a heel strap fin worn with bare feet. The result is an extremely practical fin that adapts to almost any foot and can be quickly donned at any time. The fin blade is made from a lightweight yet highly dynamic material that ensures a fluid and fatigue-free kick while providing satisfactory propulsion. The strap features a sturdy ring at the top, allowing it to be folded over or secured to the body or equipment.