50% Silione,50% Nylon. Imported.
PREMIUM DURABLE NYLON MATERIAL, ALL-DAY COMFORT Made of smooth lightweight woven nylon cord with soft silicone end grips; skin-friendly, flexible, sweat-resistant and quick-drying, no rough edges or scratchy texture. Won’t rub neck or pull hair even for long-time wearing, ideal for daily & outdoor all-day use. NO-TAIL ADJUSTABLE LOCK DESIGN, NO SWINGING LOOSE STRAP Built-in single sliding adjuster lets you freely shorten or lengthen the cord without messy excess tail flapping during movement. Secure locking buckle keeps length fixed tightly, prevents glasses slipping, sliding or falling off your face when running, biking, fishing. With 4.9 stars on Amazon, it's earning solid feedback from real buyers — check recent reviews to see if it fits your needs.



