--- product_id: 47641427 title: "XTENEX X300 Series 20\" Shoelace - Patented Flare Knot, Performance Fit - Enhanced Comfort - Neon Yellow" brand: "xtenex" price: "$31.45" currency: USD in_stock: true reviews_count: 1 url: https://www.desertcart.us/products/47641427-xtenex-x300-series-20-shoelace-patented-flare-knot-performance-fit store_origin: US region: United States of America --- # Patented elastic core for zero slip Precision tension for lateral stability Adjustable auto-blocking knots XTENEX X300 Series 20" Shoelace - Patented Flare Knot, Performance Fit - Enhanced Comfort - Neon Yellow **Brand:** xtenex **Price:** $31.45 **Availability:** ✅ In Stock ## Summary > 👟 Tie the future of fit—never lose your stride again! ## Quick Answers - **What is this?** XTENEX X300 Series 20" Shoelace - Patented Flare Knot, Performance Fit - Enhanced Comfort - Neon Yellow by xtenex - **How much does it cost?** $31.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/47641427-xtenex-x300-series-20-shoelace-patented-flare-knot-performance-fit) ## Best For - xtenex enthusiasts ## Why This Product - Trusted xtenex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Neon Yellow Visibility:** Stand out in style and safety with vibrant neon yellow that commands attention. - • **Lock-In Performance Fit:** Patented elastic design keeps laces perfectly in place—no more mid-run slip-offs. - • **Dynamic Comfort Expansion:** Smart stretch zones adapt to foot swelling, ensuring all-day comfort without pressure points. - • **Effortless Custom Adjustments:** Auto-blocking knots let you fine-tune tension instantly—no tying required. - • **Engineered for Active Lifestyles:** Designed for triathletes and runners who demand reliable, high-performance gear. ## Overview The X300 Series 20" Shoelace features a patented elastic core with strategically placed knots to prevent lace migration and slipping. Its unique auto-blocking knots allow easy, customizable tension adjustments without tying, while the design adapts to natural foot swelling for enhanced comfort. Neon yellow color boosts visibility, making it ideal for active runners and triathletes seeking a secure, performance-driven fit. ## Description Maintain an active lifestyle and experience convenience with every step you make with the X300 Series Shoelace from XTENEX!Exclusively manufactured by XTENEX using high-performing patented elastics that can keep up with hazardous movements. Designed for triathletes and runners who follow an active lifestyle, making it ideal for everyday wear. Say goodbye to lace migration with XTENEX elastic laces designed to eliminate the hassle of tying and untying shoelaces, creating a fine-tuned fitted slip-on!This shoelace is developed with an elastic core and a series of knots along the entire length of the lace. It's structured to restrict involuntary lace movements to help keep an original fit without slipping. It delivers increased tension for an enhanced lateral stabilization, so you can move without worries. The X300 series is made with enlarged auto-blocking knots that can be reduced in size by stretching the lace apart for lacing and adjusting. Its smart design automatically expands during foot swelling to prevent foot compression for more comfortable wear, allowing you to freely move with comfort all day long! It helps stabilize and support your foot within the footbed while enhancing footwear and foot care technologies, including orthotics, arch supports and insole technologies.Take a step to convenience with premium built laces from XTENEX! ## Features - 100% Polyester - PREMIUM BRAND - XTENEX provides high-performing laces that are mainly designed for triathletes and runners who follow an active lifestyle. Each shoelace features a unique lacing system design that solves the problem of lace migration. - PATENTED ELASTIC DESIGN - Engineered with an elastic core and a series of knots along the whole length of the lace at consistent length intervals. Each lace maintains an original fit by restricting involuntary lace movements, preventing slipping. - PERFORMANCE FITTING - Features enhanced lateral stabilization through increased tension along the left or right side of a shoe upper. It efficiently moves with you with a locked-in hold, so you can freely move, run, hike, trudge without any worries. - EASILY ADJUSTABLE - Structured with enlarged auto-blocking knots that can be easily reduced in size by simply stretching the lace apart for lacing or adjusting. The knots create an adjustable compression zone for a custom fit every time. - ENHANCED COMFORT - Developed with a smart design that expands during natural foot swelling while eliminating foot compression. It allows you to easily wear and take off your shoes without having to tie and untie your shoelace. ## Images ![XTENEX X300 Series 20" Shoelace - Patented Flare Knot, Performance Fit - Enhanced Comfort - Neon Yellow - Image 1](https://m.media-amazon.com/images/I/81bD1ElRmYL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ No more untied laces! *by K***R on March 27, 2015* These are brilliant! As a tennis instructor I see my share of untied laces on kids and occasionally on myself. End that nonsense with this great invention. Stylish and comfortable although they are the devil to insert. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/47641427-xtenex-x300-series-20-shoelace-patented-flare-knot-performance-fit](https://www.desertcart.us/products/47641427-xtenex-x300-series-20-shoelace-patented-flare-knot-performance-fit) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-06*