These have only been worn to try on! I’m typically a size 8 in sneakers but found them to be a bit snug on me! I bought them on Amazon originally and missed the return window. Re-selling here - Amazon description is below: Fabric type: Synthetic-and-mesh Care instructions: Machine Wash Origin: Imported Closure type: Lace-Up About this item: GEL Technology: Cushioning provides excellent shock absorption. Engineered mesh upper improves airflow: Moisture management (Ortholite is a registered trademark of O2 Partners LLC). Engineered Mesh Upper: Multi-directional mesh material improves ventilation and stability. Ortholite Sockliner: Moisture management (Ortholite is a registered trademark of O2 Partners LLC).