Fabric letters on jerseys are applied in the factory using a thermal bonding process. After many washes or rough handling on a sports field, letters may start to come loose. You can reattach loose letters quickly and easily with fabric glue. There are several kinds available, suitable for many different types of fabric.
Check the jersey’s labels to find out what material it is made from, if you do not know. Look in craft shops and similar outlets for a suitable fabric glue. Read the instructions on the bottle before buying, to make sure the glue is suitable for the fabric of the jersey and the letters. Alternatively, search for fabric glues online and check the available details. Look for a glue that achieves a secure bond and does not stiffen too much when dry. Choose a glue that is washable, such as Webster Craft Washable Fabric Glue, which is washable at 40 degrees, according to the company.
Put some of the fabric glue on a disposable paper plate, or similar item, so it is easier to access. Use a spatula to take up some of the glue. Apply it to the back of the first letter, making sure you get some glue on the edges. Leave it to set for a few minutes if it is a glue like Aleene's OK to Wash-It, which recommends this procedure. Then press the letter in place.
Fix all the other letters in the same way. Wipe off any excess glue with a rag. Tear Mender Instant Fabric & Leather Adhesive is safe to wipe off with a finger, according to the makers. Place a piece of paper over the letters, to absorb any further glue that squeezes out. Place a weight on top of the paper -- such as a book -- to weight down the letters until they dry.
Always follow the specific application instructions given with each glue product, either on-pack or on the enclosed leaflet. Sew the letters back on if they were originally sewn onto the jersey. Match the thread colour and stitching style originally used.