You can create more than 1 slit on each knee. For best results, choose fitted or skinny jeans that are already faded in the knee area.
Skip the cardboard if you do not have a craft blade.
You can leave more than 1 inch (2. 5 cm) between the edges of the slit and the seams. If you do not have a craft blade, use a pair of fabric scissors to cut the slit instead. [3] X Research source
How much you do this depends on what sort of effect you want. The longer you file or sand the fabric, the more it will fray.
Check the how-to-wash tag on your jeans to find out what temperature and cycle setting you should use. Most jeans will require cold water.
Use chalk for dark fabrics and a pen for light. Leave about 1 inch (2. 5 cm) of space between the edges of the lines and the seams on your jeans.
You do not need the cardboard if you’ll be cutting the jeans with scissors.
You are only cutting 2 parallel, horizontal slits. You are not actually cutting a square hole.
Do not pull the threads out above and below the slits. Do not pull the horizontal white threads out. This will elongate the hole. Let the threads break on their own.
Check the care tag on your jeans to find out what temperature and cycle you should use. Most jeans should be washed in cold water, however.
