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