Boot Laces, Kevlar Core, 185 cm

Approximately 185 cm long and 4 mm wide. These are designed for the Determination 2.2 (but NOT the Determination 1.0; those need 140 cm laces). Kevlar is a synthetic fiber best known for its use in bulletproof vests. Its tensile strength-to-weight is five times stronger than steel. However, 100% kevlar has some drawbacks. It has a rough texture that makes it scrape against eyelet edges, eventually wearing down and breaking. This rough texture is also not comfortable to handle, and unsightly. Kevlar is also sensitive to ultraviolet (UV) light, degrading after prolonged exposure. By placing a polyester sheath over a kevlar core, we can maintain the strength benefits of kevlar, while mitigating its weaknesses. The polyester sheath runs smoothly through eyelets, is soft to the touch, and stays looking neat. Polyester is also one of the most UV-resistant fibers, and will protect the Kevlar core from UV degradation. We recommend using the Berluti knot for all your laced shoes. It's a neat knot that stays tied. This is especially useful for your elastic laces, so you can slip in and out of your shoes without retying.  Here's what a customer had to say after we recommended the Berluti knot: The Berluti knot is a winner. No issues with shoe laces coming undone now after two days on a trade show floor.  -Andrew N.