Kevlar Reinforced Boot Laces(1 Pair) These are Soft, comfortable, large diameter bootlaces reinforced with multiple strands of Dupont Kevlar, a High Tensile Strength Fiber with a unique combination of toughness and an extra-high tenacity with excellent thermal stability. The reinforcing Kevlar assures a no break pull. Kevlar is five times stronger than steel by weight. It has become the thread choice in those special high stress, volatile applications that require extreme strength and heat protection.These tough boot laces make the perfect gift for any Hiker, Welder, Machinist, Firefighter, Construction Worker, or anyone else in your life that wants laces as tough as the boots they trust each day! ! please measure your old laces for size before order !Shoe/Bootlaces Length Guide This chart is intended to be a “Guideline only”. The length of Shoelaces can vary for different types of shoes.The best way to find the right length of shoelace is to remove the old shoelace from the shoe and measure it from tip to tip. Shoelaces LengthsHole PairsShoelace Length 1 – 221 Inches2 – 324 Inches327 Inches3 – 430 Inches4 – 536 Inches540 Inches5 – 645 Inches6 – 754 Inches7 – 863 Inches8 – 972 Inches SHIPPING TO THE USA ONLYWe currently only offer shipping to the United States. International shipping is NOT available. !! Shipping Discounts for each additional eligible item you buy from gualanet917 !! Thank you for looking at this item.Please check out our other great eBay sales.All questions are very welcome.