Comfortable boots made from natural rubber by Tretorn, which was founded in 1891 in Helsingborg, Sweden. With a neoprene panel for warmth, created without the use of chlorine. Waterproof natural rubber. Neoprene panel. Pull tabs. Chunky tread sole. Details 70% natural rubber, 25% SBR neoprene. Made in China. Heel height 3cm. Although durable, natural rubber may require additional care compared to synthetic versions and it is best to avoid heavy mud. If you get caught in these weather conditions, remove any dirt and dry at room temperature for longevity. We suggest taking the next size down if you are in between sizes.