All Hamvay-Láng comforter comes with corner loops (also called Japanese loops). The loops are small strips of fabric sewn on the corners to help secure your comforter properly in its duvet cover. All Hamvay-Láng duvet covers come with ties so that you can attach your comforter to the cover. This will ensure that there will be no shifting, and you won't have to fuss over your covers every night.