When I was baptized I wore a white robe which I thought was just a matter of wearing something rather than my clothes - or even a swim suit. But the symbolism there is worth noting. Through baptism our sins are washed away. We are clothed in the righteousness of Christ. God calls us his own.
I may not be a clothes horse. But O, my Lord, [Jesus has] dressed me. And I am a wonder dressed in his robes of righteousness! (cf. Walter Wangerin, The Ragman)