UPPER complex upper with more elasticated panels of perforated Microfiber supported with a triple layer microfibre frame. Combined with the lacing system it gives an optimal fit and powerful bracing with a smooth inner surface on the skin. The big toe panel features an extra large pocket of textured microfiber extending under the ball of the foot. INSOLE TPS 3D molded plastic insert with floating big toe pad for a concave profile with sensitivity. Refined heel with a Flexan heel strip to maintain heel tension and shape. ACTIVE RANDING X-Tension active randing system keeps the shape of the shoe over its life. The power is focused on the big toe while still supporting the arch and forefoot. The PAF System is an innovative heel system that helps both spread the force of the heel tension and increase the fit of the heel.SOLE 3.5mm 1/3 length XS Grip 2 sole for excellent flexibility.