Engineered Knit Upper. Featuring a low-profile external heel counter, this piece comfortably cradles your foot with advanced rearfoot support. Updated midsole with FF BLAST™ PLUS cushioning. This helps keep the shoe lightweight while creating a more energized rebound in each step. A LITETRUSS™ stability feature is placed on the midsole’s inside angle. It’s designed to help keep your foot from rolling too far inward during your stride. Heel drop - 10 mm. Weight - 10.5 oz