Since I am in need of new shoes, and can't find my preferred brand name "Keene" here, I was considering buying online and having them shipped here.
Now, for the past couple of days I have been trying at SierraTradingPost.com to add shoes to the checkout cart, but it wouldn't allow me to pick the sizes or change colors etc.
Today I noticed in red it says U.S. shipments only. It then dawned on me then that they may be blocking me from adding these shoes to the checkout cart based on the fact my IP address is in Ecuador, despite the fact it is my intention to ship these shoes to a U.S. based address, and then have them forwarded to Ecuador.
In any case, using a different web browser, I added a U.S. based proxy server address which I obtained from this website, I was able to add the shoes to my shopping and continue the checkout process using my first browser.
This workaround is similar to the one people use to watching Television programming in the U.S. via the internet.
P.S.
I have never had a problem ordering or checking out with Amazon.com or Ebay, so this is something that was unique to SierraTradingpost.com