Get ready to "Synq" this amazing new style on the Q-Sport Walker Outsole with your TRAQ by Alegria® smartphone app. The dual-density polyurethane outsole offers increased support, more balanced weight distribution, enhanced shock absorption and better rebound. Ventilated mesh window for added breathability TRAQ by Alegria® smart shoes with Q-chip™ technology Removable insole Padded interior heel cup Dual-density polyurethane outsole Non-marking outsole 1 inch heel height