VERSATILE TRACTION: Customized traction on the fly; easily change soles as conditions or terrain demand. WATERPROOF: 100% Waterproof breathable bootie construction combined with waterproof leather keeps feet bone dry. INSULATION: 400g of 3M Thinsulat insulation, for the ultimate warmth during intense winter conditions. PROTECTIVE: Composite toe meets ASTM & CSA testing standards & Lenzi puncture resistant plate protects feet from sharp objects. ADDED SAFETY: Unlike overshoes & other safety cleats with straps, the SnowJack Pro's integrated traction design allows for safe operation of vehicles and machinery. Winter boots built rugged, tough, and ready for the job.