Revo RR Air Riding Boots. Upper constructed with perforated TopGrade microfiber. Ultra-flexible TPR panels for improved comfort and movement. TPU shifter guard and heel protection. Molded TPU shin guards. Outer TPR ankle protectors. TechnoGI thermoplastic molded heel cup and toe cap. Dual-density molded and contoured ankle protectors. Uni-directional anti-twist molded nylon midsole. Single-density non-slip sole with added arch support and heel coverage. Replaceable molded TPU toe slider. YKK® zippered opening on the medial side with heavy-duty hook-and-loop flap. Breathable comfort polyester mesh lining. Super comfortable reactive foam comfort sole by Armanox®.