Ideal for extended use and cold waters, the Cressi Gara 3000 LD Fins feature softer blade materials for a less hard and exhausting swim. Decreasing blade profile thickness (from 5.5mm to 2.5mm) makes the curving more progressive, eliminating the skidding tendency, with the first half of the set more rigid and the last half more flexible. More-rigid thermoplastic rubber applied on the nerves, on the whole foot pocket's sole and on the headband over the instep, make effort transmission more immediate without dispersing on rubbery compositions. The foot pocket has more thickness for a better fit. Each size of the Gara 3000 LD Fins has a blade proportional to its measurements, maintaining an identical rigidity and surface level no matter the swimmer. Great for extended use and cold waters Softer blade materials for less effort Decreasing blade profile thickness More-rigid thermoplastic rubber applied on the nerves Thick foot pocket for a better fit