The Bontrager Ballista Men’s Road Cycling Shoes have a novel heel mounted Boa Dial to give a snugger & more efficient fit. Rather than putting all the pressure on the top of your foot the Ballista draws the shoe into the sides & back of your foot, pulling your heel into the shoe & giving you a more efficient pedal stroke. The Ballista shoes use Bontrager’s in Form Pro ergonomic last to create a high performance fit. Coupled with a carbon sole & lightweight upper the Ballista are a road shoe for those who are serious about performance. Features in Form Pro last delivers an ergonomically optimized, high-performance fit 100% OCLV carbon sole is extremely lightweight & stiff for efficient power transfer Heel-mounted Boa IP1 dial offers precise, two-way fit adjustments Stiffness index 12 of 14 Heel Reel draws foot down & back to create a secure heel lock for a more efficient pedal stroke No-sew, fused upper for lightweight construction 3 bolt cleat pattern compatible with standard road pedal designs