Most of our wigs best fit about a 22" head size. Most (not all) of our wigs have size adjusters inside so that you may customize the fit. The wig's written description will state if it has elastic adjusters. Our Fashion wigs and Natural Series Lace Front Wigs fit heads between 20.5" - 22" best. Our Natural Plus Series Lace Front Wigs & Luxe Series Lace Front wigs fit heads between 21" - 22.5" best. Everyone's head size + neck length are different. These factors could make the length of the wig on you vary from the length of the wig shown in the pictures.