ultra-flexible react element 55 sneakers in tech fabric with contrast details. color matched toe with exposed seams. string laces. contrast lace hooks in tech fabric. color matched asymmetric tongue with logo print. contrast side swoosh detailing. reinforced back patch with contrast swoosh. the back pull loop allows for perfect wearability. tpu heel counter. textile lining and insole. nike react foam midsole for flexible cushioning. rubber sole. height of sole toe: 2 cm height of heel: 4 cm. us size system.