The RotoFlex #9063 reimagines premium comfort and protection. Utilising the GripTek Extra Heavy Duty rubber outsole and SoftCell comfort system, these design principles are all wrapped up in stone nubuck.  Features: Stone water-resistant nubuck leather upper safety boot—150mm height Seven rows of lacing hardware, including lace locking device Laces are manufactured from recycled PET Durable, heavy duty zip with industrial grade zip fastener Lining made from recycled PET offers moisture wicking and long lasting performance Heavy Duty TPU moulded toe guard designed for superior leather protection GripTek XHD Sole biomechanically engineered rubber (PUR) outsole designed for optimum grip and stability Heat resistant to 300 ̊C Fuel oil resistant Excellent cut and slip resistance Aircell Footbed. All new tech for all day comfort. Our exclusive zoned airflow footbed is built to ventilate, control moisture and cushion when you move. Fortashield Toe Cap. Broad fitting, cut-resistant steel toe cap tested to resist a 200-joule impact. Softcell Comfort System. Unbeatable fit. Unrivalled comfort. An all-encompassing design—perfect from day one. Infinergy This E-TPU material is a super elastic energy foam from BASF which is soft but resilient—providing enhanced cushioning and reducing the impact of every step taken.