The asymmetric upper construction incorporates more material on the inside of the boot, right where most of the force from the leg is transferred to the skate. For the PK7900, GRAF uses insoles and outsoles made of light, extremely hard composite materials. The 3D Heel Lock Design, with which all the GRAF Pro models are equipped with, keeps the heel straight in the shoe and prevents it from slipping. With the new PEAKSPEED Lightning series, GRAF has concentrated even more on adapting the contour of the boot to the anatomical shape of the foot. New “sandwich” press moulds have been developed for this purpose, which shape the Pro Carbon Composite quarter panel into the perfect shape even before it is assembled with the shoe. Like the PK7700, the PK7900 has the same inner workings featuring our new innovative Flexfit technology. The upper part of the lining is made of durable Flex Grip microfibre and the lower part is made of soft, breathable nylon velours. The PK7900 has a Flexfit collar to prevent friction injuries to the leg, so you can devote your full attention to the game. The inner lining has a plastic coating on the areas susceptible to friction to make the shoe usable for longer.

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