Adidas Men's Terrex Fast R Shoe Mesh / Synthetic Midsole: Full forefoot adiPRENE+ for forefoot propulsion and efficiency Inlay: Molded Ortholite sockliner for best foot climate and comfort Midsole: Outdoor specific FORMOTION unit for enhanced motion control and downholl comfort. Outsole: TRAXION - featuring Continental Rubber for extraordinary grip.