https://www.amazon.com/Xit-XTWRIST-Professional-Wrist-Strap/dp/B00D1AS9WM/ref=sr_1_fkmr0_1?ie=UTF8&qid=1475498391&sr=8-1-fkmr0&keywords=Xit+XTWRIST+Elite+Pro+Wrist+Strap+for+all+Cameras
$6.94 free prime shipping.
Ours is a 2-pack.