Greetings fam this is my first post in this section

I’m starting a collection of vintage coogi sweaters & I wanted to know if anyone on here can help me tell the difference between fakes & authentics

I know there are Coogi Classic, Coogi Blues & regular Coogi brand sweaters & that the color code on the tag should always be yellow, blue, green, orange & red

One thing I’m not sure of is the authenticity of the vintage sweaters with black tags vs the usual white tag sweaters

I’ve searched everywhere online & can’t find anything on the specifics of legit / fake coogi sweaters

Any help would be greatly appreciate