Chums Original Cotton Large End Eyewear Retainer, Black - Walmart.com
Luxe Performance Cable Strap Premium Adjustable No Tail Sunglass Strap and Eyewear Retainer for Your Sunglasses, Eyeglasses, or Prescription Glasses (Luxe Black 14") at Amazon Men's Clothing store
Oakley Split Shot Replacement Head Band Strap Leash Retainer Lanyard Authentic | eBay
Amazon.com: Oakley Sunglass Leash Kit, Black, Small : Tools & Home Improvement