Giro Gauge BOA Shoe Trail riding confidence. Bikepacking soul. The Giro Gauge BOA is built for riders who want the feel and versatility of a trail running shoe with the performance of a cycling-specific design. Clipless pedal compatibility and a supportive BOA(R) L6 fit keep you connected to the pedals, while an aggressively lugged rubber outsole delivers the grip and durability needed for hike-a-bike sections, technical approaches, and everything off the bike. Rock Print reinforcement at the toe and heel protects against scrapes and impacts, a supple synthetic and mesh upper breathes and dries fast, and an EVA midsole disperses pressure and absorbs shock across rough terrain. From spirited trail rides to multi-day bikepacking adventures, the Gauge BOA is the shoe that keeps up. Features BOA(R) L6 Fit Systemmicro-adjustable in 1mm increments with a turn of the dial, instant release function, and a lifetime guarantee on dials and laces Aggressively lugged rubber outsole (97% rubber) - built for confident traction and durability across trail terrain, hike-a-bike sections, and off-bike adventures Rock Print reinforcement at the toe and heel for abrasion resistance and enhanced durability against scrapes and rock impacts EVA midsolelightweight, flexible, and resistant to packing out; disperses pressure and absorbs shock for a better connection to the pedals across rough terrain Supple synthetic and breathable mesh upper55% synthetic leather / 42% polyester textile construction for lightweight comfort, fast drying times, and long-term durability Stout injected-nylon inner shank for efficient power transfer to the pedals2-bolt SPD cleat compatible SPECIFICATIONSClosure Type Single BOA(R) L6 Dial Upper55% Synthetic Leather (PU/Nylon/Polyester), 42% Textile (Polyester), 3% TPUOutsole97% Rubber, 3% TPU Plate Cleat Compatibility2-Bolt, SPDIntended Use Trail, Gravel, Bikepacking Sizing EUUS Men's US Women's36-537-637. 5-6. 538-6. 538. 5-7396. 57. 539. 578407. 58. 540. 57. 58. 5418941. 58. 59. 5429. 510. 542. 59. 510. 5439. 510. 543. 510-4410. 5-44. 511-4511-45. 511. 5-4612-46. 512. 5-4713-4813. 5-4914-5015- | Giro | Gauge Boa Shoes Men's | Size 41 In Black | Nylon