Rubber sole Integrated, replaceable bi-injected tpu forefoot slider features new easy-screw fixing concept for quicker and easier replacement. External, high modulus tpu heel counter, lateral ankle and shift pad for improved shock protection and durability. Internal toe box protection is layered under the upper for durability, improved feel and performance. Removable anatomic foot-bed includes eva foam and lycra for comfort and support. Internal mesh lining for cooling comfort and moisture-wicking. A class-leading, low-cut performance riding boot, the Stella SM-1 R v2 Vented Riding Shoe incorporates a host of technical innovations for improved levels of comfort, fit and durability. Constructed from a lightweight and abrasion-resistant microfiber upper with extensive perforations for maximum airflow and breathability, this shoe is also equipped with strategically positioned TPU protectors for abrasion resistance in a key area. The Stella SMX-1 R v2 Vented Riding Shoe also features a rubber compound sole with superior grip patterning for excellent grip both on and off the bike, while the accordion flex zones give support and control regardless of your riding position.