This style fits true to size, order your normal size. Upper: Lightweight and breathable mesh fabric with fusing material Lining: Breathable mesh Lining of insock: Textile Insole: Moulded open-cell foam technology for superior comfort and support. Delivers long-term cushioning, high-level breathability, moisture management and antimicrobial function. Removable for easy replacement, if needed Midsole: Lightweight compressed EVA Outsole: Compressed EVA with TPR inserts. Lightweight and durable. Round toe Heel type: Flat