IronLace shoe and boot laces are for those that want the best possible laces with durability and protection. Their round Unbreakable laces are made with advanced para-aramid fibers that are 20 times stronger than Kevlar laces, have a higher strength to weight ration than carbon fiber, are waterproof, will never freeze, are fireproof, and are corrosion and chemical resistant. The Unbreakable Sport laces are made with the same fibers and features as the Unbreakable laces but are flat. The round Paracord 550 laces made from nylon strands are durable and somewhat elastic. Their laces come in eight different lengths to fit most shoes and boots. Their laces are guaranteed for life. IronLaces are manufactured in the United States providing jobs and stability in their community and they employ blind workers.