The Head Vector 110S RS boots have an innovative design that is ideal for high-performance athletes with advanced experience. The perfect fit design provides a custom fit for any athlete as it features four special Spine-Tech metal clasps and a top zip with a 30mm Velcro closure for a better fit. It has a padded wedge and a comfortable welt with insole to provide more comfort and performance on the track. Its construction with Primaloft technology provides greater breathability, lightness and ideal heat insulation at low temperatures. Its case is super flexible and comfortable. Features: - Bi-Inj. Dynamic frame, easy access shell design, racing flex tuning, single canting, rear support tuning inner shoe: perfect fit S, HP frame footbed, 45 mm Velcro fasteners: 4 micro-adjustable aluminium buckles, 1 super. macro advice Flat buckles. Specifications: – Level: Expert – Flex: 110/100 – Sizes: 250-305-310-320 – Shell: PU / SL – Strips: S 1800cc – Ergo: Balance Evo Balance – Forward tilt 14°, - Ramp angle 4°