Board Thread:Questions and Answers/@comment-3459763-20140421035831/@comment-2211792-20140421151215

His clothes are merely his reiatsu meter, so to speak. As long as he has reiatsu, clothes can be restored. They are a byproduct of his bankai's main ability - to compress reiatsu. It's not unlike Hitsugaya's bankai: although he has wings, it doesn't matter if they break, cause he can restore them with his ability to make ice.