DidoMall via Amazon offers the Kupton GoPro 6-in-1 Harness Strap Kit
, model no. GP004, for $11.99. Coupon code "NT67GAJ7" cuts it to $8.89
. Plus, Prime members receive free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $5.58.) That's $31 off list and tied with our August mention as the lowest total price we've seen. It includes a head belt strap, chest belt strap, two thumbscrews, and j-hook.