UNMATCHED COMFORT - Made of 95% polyester and 5% elastane, this glasses cord offers an exceptionally soft wearing experience. Buy risk-free and see for yourself RELIABLE HOLD - This sports band provides a secure and dependable hold for your sports glasses, reading glasses, or sunglasses, even during the most extreme activities UNIVERSAL FIT - The adjustable stopper allows the glasses accessory to fit any head size, making it also suitable for children! Fits temple width: 5-12 mm. (0.20-0.47 inches) FUNCTIONAL DESIGN - Ideal for climbing, surfing, sailing, jogging, or downhill. The sunglasses strap is the perfect helper for your activities and can also be worn around the neck TESTED BRAND QUALITY - Benefit from a brand passionate about conquering the outdoors. Great materials and functional design characterize this sports glasses strap