UPPER: One piece of SynchwireTM - Laser cut ventilation holes - 3 Velcro straps - Graphic and reflective logo on the back. EXTERNAL SOLE: Injection nylon outer sole and fiberglass - Universal foot notch hook (2- or 3-screws) - Injected TPU heel and forefoot Insole: EVA insole WEIGHT: 272 Grams No frills just the fundamentals done right   The Stylus features our premium Synchwire single-piece upper that conforms to the foot and provides phenomenal structural support and ventilation. Three compression-molded hook-and-loop straps provide tried-and-true tightening to create a comfortable supportive fit. Our injection-molded nylon and glass fiber outsole with over-molded heel and toe pads plus a universal 3/2 cleat bolt pattern gives you the power and versatility you need to get the most out of every ride. SYNCHWIRE — Synchwire construction is a stitch-less upper that's vented and reinforced to create a lightweight cycling shoe with incredible airflow and structural integrity. Synchwire is an advanced composite of thermo-bonded film that provides overall durability a non-woven internal sheet for distributing the force from the closure system to the upper for direct power transfer and mono-filament mesh for ventilation. REFLECTIVE DETAILS — Reflective details enhance visibility at nighttime or in low-light conditions when illuminated by a light source such as headlights by returning the light back to the source and reaching the driver's eye. INJECTION-MOLDED NYLON OUTSOLE — Our injection-molded nylon and glass fiber outsole is stiff and light and features over-molded heel and toe pads for durability. The universal 3/2 cleat bolt pattern allows you to choose 2-bolt- or 3-bolt-style cleat/pedal systems for versatility and personal preference. Upper: 75% TPU 20% Synthetic Leather 40% PU 60% Nylon 5% Polyester; Lining: 85% Polyester 15% Synthetic Leather 60% Nylon 40%PU; Sole: 80% Injection Plate 85% Nylon 6 20% Glass Fiber 5% Carbon Fiber 20% TPU lug and walking pad Cement Construction