This isn’t as common as other cat problems, but you’ll see it occasionally among Burmese and Siamese cats: the cat will chew on cloth, sometimes creating large holes. They seem to prefer wool, which is why vets refer to “wool chewing” and “wool sucking,” but some cats will chew on other fabrics as well.
No one knows exactly why they do it, though it might be related to a craving for fiber in the diet. It isn’t easily solved, though some people work around it by giving the cat an old wool sock or glove to chew on.