Everyone’s head size, neck length, and height is different. Here are photos of women who are 5’6″ with average head and neck size. Kinky curl shrinkage is normally .5 to 4 inches. The tighter the curl, the more shrinkage. Hair lengths are the lengths once the hair is in its stretched or flat ironed condition. We sell hair based off of the actual length of the hair, and not the shrinkage size. The tighter the curl the shorter the hair in its curled condition. It is best to measure the length of your natural hair before determining which lengths you may need.