The blades of the FAST 400 FS-40 have a hardness of 40 hard, made with 100% top-quality MEGAFORCE T-700 carbon, which is 40% more durable than the usual T-300, featuring a double parabolic curvature (D.C.P.) and are 20 mm longer towards the heel compared to traditional blades.

The blade angle is 29°, unlike common carbon blades which do not form an angle but a curve. Their dimensions (790 x 190 mm) are suitable for use in demanding underwater fishing.

The fixed-width water rails of the new FAST guide the water to flow along the blade, achieving efficient propulsion and the underwater hunter feels as if moving "on rails." At the same time, the dimensions and the double parabolic curvature of the blade allow movement with absolute flexibility.

The new fins C4 - H.Dessault 350 are made of thermoplastic rubber and weigh only 350 grams for size 41-42. They are the lightest thermoplastic rubber fins on the market today. The ergonomic design is a characteristic style of C4 - H.Dessault, featuring a preset 3-degree angle to improve comfort and efficiency.