Q&A for How to Stretch a Polyester Shirt

Wash the polyester at a temperature of 60° C (140° F) or above using a normal laundry detergent. Then, dry the garment in a tumble dryer using a high heat setting. Fold and store the item in the closet instead of hanging it up.

Wash the polyester at a low temperature in your washing machine. Then, tumble-dry the garment at low heat in the dryer, and hang it up when the drying cycle is done.

A simple way to stretch a polyester shirt is to use water and conditioner to reshape the material. Fill a sink or bucket with warm water and add a spoonful of hair conditioner into the water. Soak your shirt in the water for 30 minutes, then wring out as much water as you can. Pull the shirt with your hands to stretch it out to your desired fit. Then, use heavy items such as bricks or rocks to hold the shirt stretched out as it dries.

Yes, you can stretch out polyester material. Try using warm water and hair conditioner. Fill a container with the warm water and add in a few drops of hair conditioner. Mix the solution together well and place your polyester into the water. Wait about 30 minutes then take out the material and wring out the water. Then, pull and stretch the polyester until it's stretched out how you want it.

Fill a sink or bucket with warm water and add a spoonful of hair conditioner into it. Then, soak the shirt in the water for 30 minutes. When it's done soaking, take the shirt out and wring out as much water as you can by hand. Put on the shirt while it's still damp and move around in it so it molds to your body and stretches out to fit you. Keep wearing the shirt until it fully dries so it keeps its shape.