"Are the clothes comfortable?"
Translation:Είναι τα ρούχα βολικά;
I'm afraid dictionaries don't tell the whole story. The standard way to describe clothes as comfortable in Greek is
βολικά άνετα, as mentioned in another comment but βολικά works too, not αναπαυτικά. You'd use αναπαυτικός/ή/ό for a couch or a chair. Ανάπαυση means rest (among other things) and that kinda takes over.