OG, or “Original”, is a term used to describe a sneaker’s original colorway. Generally, this is the first colorway that was released when the sneaker first came out. OG colorways can often fetch a higher price due to their rarity and nostalgia value. If you’re a collector or reseller, having a few pairs of OG sneakers in your collection can be a great way to make money.
Additionally, the term "OG" is also used to describe a sneaker model that is considered to be the original version of the shoe. For example, the "Air Jordan 1 OG" would refer to the original Air Jordan 1 model that was released in 1985. This is different from a retro release, which is a re-issue of an original sneaker model.
OG models are highly sought after by collectors and sneaker enthusiasts for their historical significance and vintage appeal. They are often considered to be the most authentic and true to the original design.