This very technical waterproof boot is the result of extensive research and testing. Invincible incorporates advanced materials for shock absorbency and lightweightness with safety. A favourite for use in extreme work situations including Rope Access, Emergency Services, Pole Climbing and Special Services. The sole is a special compound designed for outstanding anti slip properties on multiple surfaces. A zip side with storm bellows is incorporated for easy access. EN ISO 20345:2004 SRC S3. Supple, breathable leather with an articulated comfort tongue with bellows to prevent ingress of dirt and water. An ergonomic cut down padded collar provides added comfort when flexing the leg. Incorporates D3O impact absorbent gel within the side of the upper, giving added protection. This material locks on impact and then returns to its previous state. V DRY 100% waterproof breathable membrane bootie. Seam sealed and abrasion resistant. Moisture wicking padded lining. Full length replacable, energy return footbed incorporating rebound foam with air circulation vents. Wide fitting composite non sparking and thermal insulating. Tested to 200 joule impact rating. Composite midsole. Triple density Phylon/Rubber providing high slip resitance. Anti-static and abrasion resistance to the latest EN standards. Heat resistant to 300°C. Acid, alkali, oil and hydrocarbon resistant. Shock absorbing defined heel for safety when working on steps/ladders.