Solution Speed model features a PU (polyurethane) application on the upper. It provides better support, flexibility, and an improved fit. DYNAWRAP technology helps to provide more stability in the forefoot during side-to-side movements. The solution to produce sockliner with the dyeing process is reducing water usage by 33% and carbon emissions by approx. 45%. TWISSTRUSS technology in the midsole is improving cutting motions and quick transitions. It’s especially important for the players who regularly sprint from the baseline to the net. To help deliver faster forward changes, the new outsole design offers better traction in the heel, forefoot, and toe sections. Specifications: ASICS Solution Speed FF 2 men’s tennis shoes designed to expand players' game space on the court. Solution Speed is the fastest model in the ASICS tennis range. The focus points of a new model are a combination of better stability and a more flexible fit. A shoe is recommended for fast movements and quicker acceleration on the court.