There is no sewing construction being available in this version. Hence, it does not diminish stitching for enhanced flexibility and irritation-free comfort. The comfort collar materials in the heel are applied for a strengthened fitting. The reflective materials that are available upon the heel along with toe-tip are for strengthened visibility in lower-light conditions. The consideration of midsole indicates that it appears with full-length Phylon midsole while introducing lightweight cushioning. The multidirectional flex grooves in the midsole offer the superior suppleness. Moreover, it provides an iconic look.
Traits of outsole appear with Nike free XT technology that provides the full-length multi-directional flex grooves that permit the foot to move in a usual motion for training. This version introduces the exaggerated and instinctive flex grooves that extend into the midsoles to make decrease the entire weight of the shoe while strengthening the multidirectional suppleness.