Anatomical shoe in a thermoplastic rubber that holds the fin firmly in place using every movement in the sole of the shoe with non-slip rubber inserts; 25-degree curved blade that increases performance with minimum effort, designed with a combination of 3 different technopolymers to optimize the thrust; Exceptional resistance to wear thanks to the anti-abrasion rubber inserts; The quality of the Seac F 100 PRO fins are guaranteed by Seacsub SpA, a bench mark in the diving industry since 1971