Are Argent ETH Addresses Static?

I want to get my buddy a shirt for his birthday with a QR code for his ETH address. He uses Argent wallet, I don't so I don't know how it works. If I ask him for his QR code to receive ETH will that QR code always work and funds will go to him? I know some BTC addresses change sometimes depending on the wallet I just want to be sure.

Thanks