The Vulcan snorkeling fins let you enjoy exploring the pool, lake, and ocean. The fins are sized to wear on bare feet, or wear with lycra or neoprene fin socks for extra protection from sand and blisters during long snorkeling excursions. Soft rubber foot pockets make these fins easy to wear barefoot, or with Sand Socks for extra protection during longer snorkel trips. Fins have plenty of snap and give plenty of propulsion, yet are easy to kick and control.