These boots are made of EVA polymer with direct injection moulding technology, this combination makes these unique boots one of the most durable (resistant to splitting and cracking) and most comfortable wellies on the market. Sole thickness ranges from 25mm at the heel to 20mm at the front making it entirely shock absorbent. Every pair comes with a set of custom made to size, removable and washable liners made of antibacterial felt finished with polyester collar which can be either rolled outside or inside of the boot. 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). In the warmer months, liners can be replaced with special LBC leather anti-odour welly insoles for cooler fit. CE Certified and EU patented. ISO 9001 2015.