Ironlace has been field tested in the most abusive enviroments on earth and will preform for life. These laces not only last – they lace up tight and never stretch. So once you put them on, Ironlace will stay put and stay comfortable. Whether you are on the job site or climbing the north ridge of K2, Ironlace will always pull through for you. We Guarantee it…Worlds only lifetime guaranteed laces
Stronger than steel, 1500 lb breaking strength
Corrosion and chemical resistant
Heat and Fire resistant to 630 f.