Flat knit mesh fabric nearly one piece upper - Stability knit mesh panels for added comfort Slip on bungee front athletic training sneaker design - Stitching accents Nearly seamless upper design - Side S logo Synthetic overlays at heel and front instep panels - Bungee stretch fabric laced instep panel for easy slip on fit 98.04% Textile (Polyester), 1.96% Synthetic (TPU).