The SONICBLAST™ shoe offers a lightweight and responsive ride that makes it functional for tempo runs, workouts and races. This boosted trainer has a more stable heel and more flexible forefoot transition compared to other plated models, making it a more accessible option to many runners. The midsole features a two-layered foam with FF BLAST™ MAX and FF TURBO™ SQUARED cushioning to help create a lightweight, bouncy, and advanced cushioning running experience. Additionally, an ASTROPLATE™ (PEBAX plate) is centered in the foam. This helps propel your momentum forward, creating a faster feel underfoot. Size Guide US Men US Women EU AU CM 4 5.5 36 3.5 22.5 cm 4.5 6 37 4 23 cm 5.5 7 38 5 24 cm 6.5 7.5 39 6 24.5 cm 7 8.5 40 6.5 25 cm 7.5 9 41 7 26 cm 8.5 9.5 42 8 26.5 cm 9.5 10.5 43 9 27.5 cm 10 11 44 9.5 28 cm 11 12 45 10.5 29 cm Tip: choose your usual size. For a looser fit, select half a size up.
