This style fits true to size, order your normal size. Upper: Ultralight, abrasion-resistant polyester upper made with a minimum of 50% recycled plastic. ROCKFIBRE METAL FREE technology Lining: Breathable mesh lining with KODIAK SOS Smell Out Science odor control technology Lining of insock: Mesh with KODIAK SOS Smell Out Science odor control technology Insole: Comfortzone LITE footbed built with OrthoLite Hybrid compound Midsole: Sculpted dual density, supportive and cushioning EVA Outsole:Non marking outsole with slip-resistant cleated rubber outsole flex zones Composite toe