As a general guide, TPU is the all-rounder, suiting most work environments. It is highly resistant to most oils and chemicals while also being heat resistant up to 130ºC. The TPU sole has a high tolerance to cuts and excellent tear strength, while maintaining slip resistant capabilities. It is also very durable, providing a high tolerance against abrasion, splitting and cracking. Most of our boots come standard with a TPU outsole and it is by far our most popular sole type