Closed fins with shoe in soft thermoplastic rubber with blade in a combination of materials to channel the flow of water and increase thrust. "Extreme performance and comfort fins. Model: fin and closed shoe in dual-material. Shoe material: in thermoplastic elastomer. Blade material: blade in high elastic thermoplastic technopolymer module. Made in Italy is once again the trademark of Seac fins. The result of careful studies and tests both in the laboratory and in the field, Seac fins are born of the creativity of Italian designers, engineered after three decades of experience and produced in cutting-edge automated production facilities. The innovative materials are selected following in-depth research and empirical testing to identify the mixture that guarantees each model maximum performance, comfort, and durability. "