Foot pocket
The UP fin uses the 250 foot pocket, the latest foot pocket developed by C4.
The use of TPE 75 ShA polymer overmoulded onto a rigid base for the 250 foot pocket means that the foot pocket transmits energy to the blade as efficiently as possible, resulting in a high-performance fin.
3° liner angle
Blade
Lightweight, comfortable fins with a flexible blade
One of the key features of the UP fins is the overmoulded side rails on the blade. The length (30.2 cm), variable height (17.8 mm max), thickness (3 mm) and material (thermo-elastomer) are also important. The result is a perfectly functioning blade, with no side rail interference and minimal blade slippage.
The angle of the blade is 29°, to which is added the 3° of the foot pocket, giving a total of 32°.
Design
The blade has a flexible, shiny central band running from the foot pocket to the end of the blade. The sides have a carbon-look finish. On the underside of the fin, the finish is completely reversed.
The end of the blade is shaped like a whale’s tail.
Dimensions
Blade dimensions: 795 x 190 mm.
Dimensions with shoe (41/42): 910 mm
Weight per pair: 1200 g
