The article is almost acting as the copy for your product as it is bypassing the actual shopify site and leading direct to the shopify cart.
We already know they are interested in looking at survival knifes, they are reading a authority article on the subject. The same site (or so they think) is recommending the best survival knife to buy.
The same site is giving you a direct link to buy, from article to cart...think of the conversions this type of advertising brings in.
This has so many uses once you start to experience the power of overlay app coupled with the power of Pixal Evolution
Maybe you are in the dieting arena...simply add the overlay to the top dieting sites, we know this has been done before BUT when you couple that with the power of Pixal Evolution then you can BLOW UP your conversions and engagement.
Look at how amazing this leaderboard overlay looks on this top dieting site.