Anatomical asymmetrical cut, differentiated for right and left foot Ankle support for a better comfort and driving precision Compression lines to sustain muscles: lower vibrations and optimization of blood circulation Footbed compression for increased blood circulation Grip on the sole of the foot to prevent slipping inside the shoe Ventilated mesh panel on the back of the foot: optimization of thermoregulation and breathability   Unisex size chart: S= 38-40; M= 41-43; L= 44-47