Ironlace high performance laces have been field tested in the most abusive environments on earth and will perform for life. These laces not only last, they lace up tight and will not stretch or come undone. Stronger than steel fibers are specially woven and treated to create the most abrasion, chemical,UV ray resistant, heat resistant (up to 630F), water and wear resistant boot and shoe laces in the world. One set of Ironlace’s will hold a staggering 1600lb of tension. Ironlaces outlast the...