The Magpul Eyewear Tether is an adjustable eyewear retainer that slides onto the temple tips of most Magpul eyewear models to ensure a secure fit. Low-profile rubber sliders and ultrathin nylon cord minimize the weight without sacrificing durability or slider retention. It's the ideal tether for active users looking for a comfortable, lightweight, and flexible retention solution that won't interfere with headwear or over-ear protection.