ASICS BLAST FF 3 The Asics BLAST FF™ 3 were designed to give performance athletes the dynamic movements and the support they need. Thanks to a redesigned upper in the forefoot, this shoe is more flexible and adapts better to multi-directional movements. The MONO-SOCK™ construction we've added helps the ankle lock in better, and the TURNTRUSS™ component placed in the back of the sole helps make transitions between movements smoother. ASICS BLAST FF 3