Rubber sole. The HRO rubber sole, which is heat-resistant up to 300 °C, is based on the latest running shoe technology. The sole profile ensures optimum mobility and secure contact with the ground. IQ.CELL. The gel cushion embedded directly in the heel area acts like a trampoline - it absorbs shocks and energy and then returns it immediately in the form of bounce. Evercushion Miss. This anatomically shaped, lightweight footbed with a waffle structure keeps you cool and dry by wicking moisture away from the foot during wear. The shoes also dry extremely quickly after taking them off. Safety KNIT. The highly flexible textile fabric moulds snugly and easily to the human foot. The unrivalled fit fits like a sock without any pressure points on the foot. The upper made of Safety KNIT, a mixture of high-quality synthetic fibres, offers enormous resistance despite its enormous flexibility. EVA midsole. In this ultra-lightweight midsole, countless tiny air bubbles ensure optimum cushioning and improve the rolling motion of the foot. Torsion Control Element. The TPU torsion control in the centre of the sole supports foot movement and provides more stability.