SIDI MTB Tiger 2S SRS Shoes Unleash your wild side. The Sidi MTB Tiger 2S SRS is the pro-level XC MTB shoe from Sidi. This shoe calls upon Sidi's decades of legendary experience making high-performance, high-comfort, and highly-reliable footwear. The MTB SRS Carbon-Ground Sole used for the Tiger 2S SRS is a medium modulus carbon fiber sole with a 12/12 stiffness rating, resulting in maximum power transfer for when every watt counts. The Tiger 2S SRS has a recycled Bioveg Microfiber upper that contours to the rider's foot, kept in place with a Sidi proprietary two-dial retention system with Dyneema(R) cables for a precision fit. Best of all, the Tiger 2S SRS is built to last (it is a Sidi, after all), using the highest-quality materials and manufacturing, with replaceable parts to keep the shoes rolling long after the race is over. Features Pro-level power transfer with a 12/12 midsole stiffness rating Proprietary Sidi dial system with Dyneema(R) cables uses two dials, strategically placed at the top of the foot, to offer quick and easy micro fit adjustments MTB SRS Carbon-Ground Sole ensures there are no wasted watts for when every second counts Adaptable heel adjustment system secures the rider's foot for comfort and power transfer Built to last with high quality materials and easily replaceable parts SPECIFICATIONSClosure type Dial fit system with Dyneema(R) cable Sole MTB SRS Carbon-Ground Sole Cleat Compatibility2-Bolt, SPD-Type Intended Use XC, Gravel, Cyclocross Sizing US - Men EUUS - Women6. 13976. 539. 57. 66. 4407. 97. 2418. 77. 641. 59. 18429. 58. 442. 59. 98. 84310. 39. 243. 510. 79. 644-1044. 5-10. 445-10. 845. 5-11. 246-11. 947-12. 347. 5-12. 748-13. 148. 5-13. 549-13. 949. 5-14. 350- | Sidi | Mtb Tiger 2S Srs Shoes Men's | Size 42. 5 In White