Shimano SH-RC903 S-PHYRE Limited Edition Road Shoes The shoe dreams are made of The long-awaited day has finally arrived, the newly-updated Shimano SH-RC903 S-PHYRE Shoes are here. After thorough testing, and becoming the choice of pro riders the likes of Mathieu van der Poel, the RC-903s are road shoes designed to help you perform at your highest level. This updated version builds off of the popular RC-902 with an improved retention system and heel cup, increased ventilation, and reduced weight. The SH-RC903 utilizes a pair of BOA Li2 dials that are adjustable in both directions, with an optimized cable routing for even, hotspot-free retention at the turn of a dial. The ultra-stiff carbon fiber composite sole rates 12/12 on Shimano's stiffness scale and is zone-optimized for peak power transfer, without sacrificing comfort as you power through your most competitive rides. Features Limited Edition colorways stand out on the group rides Wide sizing to properly accommodate all foot shapes Carbon fiber composite midsole that is zone-optimized for unbeatable power transfer and comfort Dual low-profile Boa Li2 dials with improved cable routing provide quick and accurate micro-adjustments without hotspots Exceptional breathbility with a perforated microfiber synthetic leather upper and a lower mesh tongue Updated heel cup resists twisting forces for increased comfort and pedaling efficiency during hard efforts Ultra-lightweight at approximately 225g per shoe (size 42)SPECIFICATIONSUpper Material Microfiber Synthetic Leather Approximate Weight255 grams (Size 42, single shoe)Closure type Dual Boa Li2 Dials Outsole Carbon fiber composite Cleat Compatibility3-Bolt, SPD-SLIntended Use Road, Road Race Sizing EUUS363. 7374. 537. 54. 8385. 238. 55. 5395. 839. 56. 2406. 740. 57. 2417. 641. 58428. 342. 58. 7438. 943. 59. 3449. 744. 510. 24510. 545. 510. 94611. 246. 511. 54711. 84812. 34913. 25014. 25115. 25216. 2 | Shimano | Sh-Rc903S Le S-Phyre Bicycle Shoes Men's | Size 42 In Silver