Internet Shopping

How can you tell if an internet shopping website is legit?

I want to buy some shirts from 6dollarshirts.com
I don’t know it it’s legit though, and I don’t want to put my card info on the website unless it’s legit.
It has a privacy policy, but that’s all that I can see.
Can anyone tell me if the website is legit?
I’ve never bought from there but based on [...]