Spend enough time racing over the roads less traveled, and you come up with a dream shoe: something that won't weigh you down, has enough comfort for all-day racing and riding, easily adjustable with tired hands, a durable upper that won't balk at the sharp rocks, and breathable for varied conditions. Giro's Sector delivers all of that and more, in a shoe built upon the Ventana, with a stiffer and lighter carbon-composite shank and Synchwire upper for the optimum in stiffness, weight, and comfort. The Synchwire upper is Giro's proprietary upper construction, comprised of an ultralight mesh and welded TPU reinforcements. This combination creates a breathable material with better durability than a traditional fabric mesh. Two BOA dials help hone-in the fit with adjustability within 1mm for the perfect fit throughout the day. The soft lace guides create a wraparound fit, further enhancing the comfort of these magic slippers.