Breathable mesh textile lining. Comfortable footbed. Inside zipper for easy entry. Width adjustment at the calf with Velcro closure. Padded TPU shin plate with integrated ventilation opening. TPU heel counter with integrated ventilation opening. TPU molding on the outer ankle for better abrasion protection. Replaceable aluminum toe sliders. Synthetic inserts on the inner ankle for better abrasion protection. Soft accordion stretch over the instep and at the heel for optimal comfort. Rubber shifter reinforcement. Abrasion-resistant rubber sole. Safety: complies with test standard EN13634:2015.