ShellCarbon fibre shell reinforced internal with extra layers of undirectional carbon fibre and kevlar material, which makes the boots super stiff and rigid for an optimal power transfer. Powerslide carbon shells are heat mouldable due to a special epoxy that is used in the shell construction. SHMR (Super Heat Mouldable Resin) enables powerslide to heatmould the boot at any spot of the shoe as many times as needed.CuffThe cuff was designed with support in mind. It is made of special composite compound that is super stiff thanks to the 15% fiberglass that was mixed into the material. An integrated arch stiffens up the side to provide perfect lateral support. The long wings of the cuff can be cutted if needed and the closure maxes out. The strap passes a channel to keep it in place and to avoid slipping and flipping. Upper & LinerThe new Powerlast improves the heel lock and the comfort in the ankle and toe area. THe PU nanoleather upper material is soft, but very strong and resistant. Neoprene and microfiber materials are used for the inside lining to provide max comfort. The Hardcore Evo is a "no-liner" boot which helps to transfer the energy directly from the foot to the wheels without any loss of energy. The 3D anatomical padding is placed strategically around the ankle area, but also the tendon area of the show to ensure the most secure ankle and heel fit. The "speedfoam" used for the padding is another advanced material used in Powerslide racing shoes. This foam is soft, but not too soft to absorb energy, yet comfortable. The speedfoam padding does not take away space inside the shoe where you would need it, but fills up the empty spaces to give more comfort and control. FramesPowerslide Hardcore Evo 2.0 comes with the Powerslide Spider Pro frame made of high end 7005 aluminium. It is based on a double voided construction. The extra ribs between the wheels increase the stiffness and help to lower the weight. The range of Spider Pro frames covers 219mm, 231mm and 243mm length - all rockered. The frame comes with single axles with T25 torx head made of 7075 aluminium. The Spider Pro frames come with a laser print and a CNC machined finish which gives the frame a unique look. The combination of the across slot in the frame and the along slot in the boots is called the X-Slot Mounting. This enables you to adjust the boot-frame setup without any dead spots according to your skating style and preferences. The length of the frames used varies with the shoe sizes.