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FluidFit™ technology provides a mesh upper consisting of a non-elastic (reinforcing) part and an elastic part, which improves the responsiveness to the foot movement while maintaining a comfortable fit. This reduces the instability of the foot during running and increases running efficiency.


During running, some parts of the foot surface are greatly deformed, whereas others are not. FluidFit™ has a mesh surface partially reinforced with non-elastic material.
This allows elastic parts to stretch according to the shape change of the foot during running, further improving the fit of the shoes.


In developing shoes, weight saving and minimization of parts are always required. FluidFit™ technology has been developed to improve the fit during running while maintaining light weight by reinforcing the mesh upper part with minimum parts.