The C4 fins project MB straightens the updated range of mid-high fins with carbon blades, paying particular respect to the ancient traditional standards of technology. For the C4, the 200 series blades represent the highest level of technology and research, while the MB blades represent the finest interpretation of the concept of “traditional carbon blades”.
Galoshes C 250 - to develop the power, we started with the galoshes. The MB fins are equipped with the new C250 shoe, a straight version of the previous 300 model. Thanks to the TPE 75 ShA polymer poured onto the rigid sole, the C250 shoe transfers energy from the foot to the blade to the extreme rank, to bring to highly effective fins. The design of the geometry allowed for a minimum weight, which led to a change in the thickness of the galoshes 250 in size 41/42 to 250 g.
Productivity - the mass (vaga) of the C250 galosh is changed to minimize the energy necessary for the roc, thus allowing the koristuvache to significantly protect the energy and, as a result, change the muscles. The connection between galoshes and shovels, due to the inner sole, is rigid, reliable and effectively transfers force to the shovel.
Anatomy - anteriorly molded 3° anatomy C250 to make it especially handy for the wearer. The changed fabric matches the shape of the top to the shape of the foot, without painful edges.
The material is a polymer, which is used for galoshes C250, is very elastic and ensures an easy and simple fit, which enhances comfort. The insulation allows the thickening of the ear in the area of the sole, and manually at the upper part.
Transport - galoshes C250 can be removed by simply assembling the shovels using one M6 screw. The assembly and disassembly of the shovels is quick and easy, and the overall dimensions are optimal for air transfers.
MB shovels - unimportant to the least amount of money, the availability of such a small shoe that can accommodate a shovel has proven to be an ideal solution for increasing productivity. With MB fins, the main factor that drives productivity is the new special “Reverse Parabolic” lamination; parabolic curvature, instead of giving the part with a larger bend at the top part, the white of the foot is retouched. There is a complete change in concept and evolution of what our DPC (Down Parabolic Curve) shovels do. This special lamination dramatically changes the mechanical behavior of the fins. The surface that creates traction is actually larger, the lower surface that creates hydrodynamic support, thus creating larger spring deformations and greater movement. The fin becomes a natural extension of the leg, and not just a mechanical extension that can be applied force.
It is clear that there is such a great advantage that you can work vikory with more heavy shovels, therefore, with greater productivity, but vikory in the same way as you can with lighter shovels. By using this function, we have increased our productivity. Hardness is reached “+”. This is explained by the fact that, bent at the hand, MB 25+ is stiff and the insoles are as long as the standard 30, and at the water level, like 25. Restarting from the bottom, accelerated and fluidity, thus, more. C4 MB shovels are equipped with new water guides with a rounded edge, which reduces the amount of water on the shovel and changes the water turbulence on the outer sides. Water slats, first introduced in C4 in 1993, have always pushed water onto the parts of the shovel, which generate traction. C4 MB has a larger traction surface, so the water slats are invisible, from the galoshes to the tip of the shovels. Without such a blast as the C250, nothing would have been possible. As always, the use of shovels itself gives results.
MB blades are available in two versions:
MB001, short 80 cm with black graphics.
MB002, long 90 cm with white graphics.
All carbon blades have a matte surface.
The C4 MB fins are named after their creator: Marco Bonfanti, who especially wanted to sign his new project of fins with curved blades “Reverse Parabolic”.
MB shovels are 100% handcrafted in Italy by the C4 company.
All C4 carbon fiber blades have been manufactured in our factory in Italy. As a result, a new type of molded plastic was added to the C4 plant, where C250 galoshes are also produced.
Shovel size: 874×195 mm
Blade size 42 / 43: 980×195 mm
Shovel material: T700 carbon
Shovel hardness: 20+ ExtraSoft/Soft, 25+ Soft/Medium, 30+ Medium/Medium Hard
Table of sizes of galoshes S4 250:












