halo 4dTwo different lasers are combined in the HALO 4D. The Halo ® fractional laser delivers two different wavelengths, 1470-nm and 2940-nm simultaneously. The Dynamis Fotona 4D ® usesThe adidas 4D FWD 2 uses an angled lattice midsole, 3D printed to provide the ultimate in support, cushioning and propulsion. As the midsole compresses forward