I know, card packaging is usually just something you have to plow through to get to the cards inside. For this product, it was also something I have never seen before. These cards are packaged in paper envelopes that are about 3″ x 5″ when closed. This is definitely an eco-improvement over all the plastic and foil from pretty much every other product.
This setup keeps the cards nicely away from the edges of the packs, which I think keeps the corners in good shape. I am not sure how well this packaging would work for sports cards, as I think it would be easy to tamper with and / or search, but it is a very nice touch for a set like this.