Remy single drawn straight hair and curly bulk hair is hackled and trimmed on one side. All the hair is in one direction, i.e. all the roots will be at one end of the processed bundle. This high quality process allows for a very small percentage of hair to be outside the specified length of the bundle. This processing keeps the hair from tangling after it is bleached or dyed. This is very popular in Europe with the high quality hair extension who prefer this type of processing for their products. This remy single drawn hair is collected from temples (particularly ladies hair).