The term 'fastened with stitches' can be summarized by the word 'sewn'. Sewing is a craft that has been around for centuries and involves using a needle and thread to join two pieces of fabric together. It is a skill that is used in many different types of clothing, accessories, and home decor items. Sewing is also used to repair items, such as torn clothing or furniture upholstery. Sewing is an important part of many cultures and is often seen as a form of art.