The ACS Pro Trainers from Salomon are the original technical shoe with a functional upgrade. Crafted with a running-stabilising Agile ChassisTM system, with a breathable functionality that provides air circulation throughout intelligently placed openings on the shaft on the outer and inner edges. Product Details: Material: Rubber / Synthetic Fit: Regular, true to size. QuicklaceTM Lacing System Weight: 397g Kurim structure ChassisTM System Product SKU: L47179800 Salomon ACS Pro Trainers - Black/Black/Black