Since 1/26/17, Amazon has removed the root category sales rank for shoes from product pages, and only sub-category sales ranks remain. Clothing and Jewelry sales ranks are also affected similarly. As a result, these three categories now no longer have their own root category sales rank. Sourcing tools/apps are able to pull the root category sales rank, but that seems to be the sales rank for a "Clothing, Shoes, & Jewelry" root category, a combination of clothing, shoes, & jewelry. That might explain why a shoe rank now appears to be much higher than before. A shoe might have had a rank of 2,000 before the sales rank change, but now it shows 10,000 in ranking, while the sales velocity remains the same. So what's the new sales rank comfort level for shoes? Stephen Smotherman of Full-Time FBA has suggested a conservative approach by showing the top percentages of sub-category rankings for Shoes, as well as for Clothing and Jewelry on his latest sales rank chart. I think it's a good starting point. I am still not sure if the sales rank change is here to stay, so I will continue to keep an eye on it.