A reluctance to see beyond buckle rings and shell suits

[Bushwhacker]

Please,

Is it an idiom. Could you tell me what does it mean?

"A reluctance to see beyond buckle rings and shell suits"

Thank You:up:

 

[Anglika]

You can't see beyond the exterior appearance [buckle rings and shell suits are "fashion statements"]. You are judging a person by the way he/she dresses and not by their behaviour.