Updated 8/14/2017

Amazon recently sent out an email to hundreds of customers to let them know their purchased solar eclipse glasses were not confirmed safe for viewing the eclipse. Amazon also said in the email they were refunding buyers in full.

If you received this email from Amazon, there are other places to purchase eclipse glasses.

The American Astronomical Society has listed manufacturers of eclipse glasses on their site, which are verified to be compliant with the ISO 12312-2 international safety standard.

NASA's website has also listed multiple ways to view the eclipse safely.