Question

I thought only double bond restrictions get cis and trans names.

So i was looking at cis-1-tert-butyl-4-methylcyclohexane and am confused as to why it gets a cis name. I can see that its the most stable confuguration and since they are on the same side it could be cis but shouldn't it be s-cis since there is no double bond to make it cis. I thought only double bond restrictions get cis and trans names while single bond confirmations(not isomers) get s-cis and s-trans. enter image description here