Flagship model of the range, highly praised for its excellent power transfer/comfort compromise, the Ekoi R4 shoe is now equipped with the BOA(R) Fit System with Dual-Dial L6. The unique feature of this system is that it allows independent tightening by zones. Objective: a fit perfectly adapted to your foot and the circumstances. Zone-specific tightening for optimized comfort and performance The BOA(R) Fit System with Dual-Dial L6 is a unique dual-dial tightening system designed to offer an unprecedented level of performance and the ability to manage lace tension independently of the upper or lower part of the shoe. The result is a comfortable fit, perfectly adapted to the morphology of your foot. This zone-specific tightening is a performance factor as it allows you to maximize push and pull during sprints, for example. Simple design and ease of use The BOA(R) Fit System with Dual-Dial L6 stands out with its overmolded dial. Lower, smaller, and more aerodynamic, it ensures a perfect grip, even in the rain or when you're wearing gloves. The lace is thin, lightweight, and very robust (made of stainless steel impregnated with nylon), and the lace guides are low-friction. The perfect blend of comfort and efficiency. Quick, effortless, and ultra-precise, the BOA(R) Fit System with Dual-Dial L6 operates intuitively and ergonomically: just press the dial to engage; turn to tighten; and pull up to quickly release. Durability and Lifetime Warranty Subjected to hundreds of hours of extremely rigorous testing in the brand's laboratories and then in the field under the most difficult conditions with the best athletes in the world, BOA(R) dials and laces have been designed with durability in mind, using high-quality, resistant materials. To ensure the greatest peace of mind for its users, the brand has created the BOA(R) Lifetime Guarantee. The dials and laces are covered for the entire lifespan of the product. get a repair kit [GRILLE=1925]