Product Specifications:  

• Upper Material: Flyknit Woven Fabric 
• Inner Material: Elastic Cloth
• Heel Shape: Flat
• Sole Material: Rubber
• US Size: Men Size 5-11.5 / Women Size 6.5-13
• Color: Blue, Grey, Red, Black, White

Suitable for "Daily walking, hiking, trekking, climbing, and running".