Innovative speedform technology delivers zero distraction while running. Seamless heel cup with foam collar provides a locked-in, anatomical fit. Smooth, ultrasonic welded seaming with Bemis tape for next-to-skin support and comfort. Perforated upper with ultrasonic seal for durable breathability. Anatomically molded tongue with foam layer for added fit and comfort. TPU molded toe cap for improved fit and protection. 360 degree reflectivity. 6mm molded 4D Foam footbed embedded sockliner within cavity of midsole for added cushioning and moisture wicking capabilities paired with seamless comfort. Full-length dual layer Charged Cushioning: it's cushioned and responsive. Blown rubber outsole with a carbon rubber heel makes it lightweight but incredibly durable. Anatomically placed flex grooves allow for an optimal heel-to-toe transition. Imported.