Synthetic sole Air mesh Uppers: Soft & Comfortable & Breathable. stretch breathable upper expand with your foot when you run and they more comfortable closely fit to help you reduce irritation. Ventilating shoes insole which thick to keep a dry, healthy and comfort foot environment. PU Sole: Lightweight & Excellent bounce-back & Durability.With high elasticity and good softness can be bended freely, safe and free to walk anywhere. The pattern on the bottom of sole features flexible grooves, which strengthen the shoes ability of anti-skid and grip. Suitable for party, sports,walking, running, indoor, outdoor, casual and trend any occasion ect.