Update: As some of you have noted, you should be careful with these, and make sure they’re marked with the ISO 12312-2 label when you receive them. If they are ISO and CE certified as the Amazon page claims, they’re fine, but given the fact that some counterfeits have been reported elsewhere on Amazon, it’s worth double checking once you receive them.
The solar eclipse is less than a month away, and if you want to see it without melting your eyeballs, you can pick up a 6-pack of ISO and CE-certified safety glasses for just $8 today on Amazon.