Fill it at least ⅓ of the way full, enough to cover your legs. Make sure the water is comfortable enough to sit in. Hot and cold water not only feel uncomfortable but can also damage the jeans.  If you don’t have a bathtub available for use, you can still stretch out your jeans. Fill up a sink or bucket with warm water instead. If you only need to stretch out a few areas, consider spraying those spots with warm water and then tugging them into shape. After slipping on the jeans, zipper and button them if you are able to. If you’re not able to fit into the jeans at all, you will need to wash them by hand. Close the zipper and fasten any buttons before attempting to stretch the fabric. Try to get the jeans into their original shape as much as possible. It’s easier if you’re able to squeeze into the jeans, but sometimes that isn’t possible. Don’t put them on if they are too tight. Place your wet jeans on a clothesline or a drying rack. Keep them out of direct heat and sunlight but try to find a spot with good air circulation. That will help the fabric dry out. While it dries, gravity will also pull the jeans down to stretch them out further. Don’t put the jeans back in the dryer! Heat causes your clothing to shrink. Direct sunlight can also fade a good pair of jeans.

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Write a summary of the previous text in Vietnamese:
Đổ nước ấm vào bồn tắm. Mặc quần jean để bắt đầu quá trình kéo giãn. Cởi quần jean và phơi khô.