The boots are made of EVA polymer in direct injection moulding technology making them resistant to splitting, perishing, cracking or peeling unlike all PU products making them ULTRALIGHT and more comfortable. Sole thickness ranges from 25mm at the heel to 20mm at the front making it entirely shock absorbent and every pair comes complete with custom made to size, removable and washable liners made of antibacterial felt finished with polyester collar. All boots can be worn with or without the liners and can withstand very low temperatures -20 degree centigrade (no liner) and - 30 degree centigrade (with liner). Very popular in many markets and end users from everyday rainwear to gardening, farming, duties around stables and also it is the MOST resistant material to horse urine. CE Certified and EU patented. ISO 9001 2015.