Nylon​​ Imported [🎯 Wide Compatibility for Smart Glasses & More] Works perfectly with Compatible with Ray-Ban Meta (Wayfarer, Headliner, Skyler), Compatible with Oakley Meta, as well as sunglasses, reading glasses, and prescription eyewear. Designed to fit most frame styles, making it a versatile choice for daily wear and outdoor adventures. [🎨 4-Pack with Color Options] Includes 4 adjustable eyeglass straps in classic black, cool blue, bold red, and calm grey. Easily switch colors to match your outfit, mood, or activity of the day — perfect for sharing with family or keeping spares in different places. [📏 Adjustable Length for a Custom Fit] Easily adjust from 8.66 inches (22 cm) to 15.75 inches (40 cm) for a secure, comfortable fit around your head or neck. Keeps glasses snug during movement and helps prevent slipping or falling, even during active use. [💪 Lightweight, Durable & Comfortable] Crafted with a stainless steel cable core wrapped in soft elastic material for strength, flexibility, and comfort. The silicone ends grip securely without scratching frame arms, and the whole strap is sweat-resistant and easy to clean. [🏞️ Ideal for Sports, Travel & Everyday Use] Whether you’re running, cycling, skiing, golfing, hiking, driving, or traveling, this anti-slip eyewear retainer cord keeps your glasses safe and within reach. Wear them on your face or hang them around your neck with total peace of mind. Upgrade your eyewear experience with this 4-Pack Adjustable Eyeglass Strap, designed for both style and functionality. Each strap is made with a stainless steel cable core wrapped in soft elastic material, delivering exceptional durability without adding bulk. The silicone ends provide a secure, scratch-free grip, ensuring your glasses stay in place no matter where life takes you. These straps are Compatible with Ray-Ban Meta (Wayfarer, Headliner, Skyler), Compatible with Oakley Meta, and fit most sunglasses, reading glasses, and prescription eyewear. With an adjustable length range of 8.66–15.75 inches (22–40 cm), you can customize the fit for maximum comfort and security. The set includes four versatile colors — black, red, blue, and grey — allowing you to match your look or share with friends and family. Whether you’re running, cycling, hiking, skiing, golfing, traveling, or commuting, the anti-slip eyewear retainer cord keeps your glasses safe, accessible, and ready for action. Perfect for everyday wear, sports, and outdoor adventures, this eyeglass lanyard is sweat-resistant, easy to clean, and built to last. Keep a set at home, in your car, and in your travel bag so you’ll never be without it.