Breathable mesh upper provides complete ventilationmidfoot straps add structure support without adding extra bulkdie cut full length eva sockliner for added comfort a custom fitfull length micro g foam turns cushioned landings into high powered take offsadded cushioning in the heel strategic flex grooves in the forefoot work with your natural stridesolid rubber outsole with strategically placed traction over high impact zones for greater durability with less weightoffset 10 mmweight 25