To choose a long wig, you will need to consider the cut, color, size, and materials of the wig you purchase. Not all wigs are created equal, so buying a discount version will not give you a natural look in most cases. You will have a larger selection if you shop online, but you should also keep in mind that it's much harder to choose a long wig if you haven't gotten to touch it, try it on, and speak with someone who is knowledgeable about proper wig purchasing and care.
The first factor you should consider when choosing a long wig is price. If you find the perfect wig but can't afford it, it won't do you much good. If you're shopping online, narrow your search results to the price range you can afford and look only through wigs at that price and lower. If you'll be shopping in a brick and mortar store, tell a sale associate your price range, and ask to only see wigs that meet your price requirements.
Once you have determined how much you want to spend on a wig, you can begin your search. Make sure you measure your head before beginning your search to determine what size you will wear, and then narrow your search further based on that factor. You can measure your head using a basic seamstress tape measure. If you have trouble, have a stylish friend or sales associate measure it for you.
The next thing to consider is the style you want. This is a matter of taste, so there is no right or wrong way to choose the style of your long wig. There are certain styles that look better with certain facial shapes, so you might want to keep that in mind as you shop. For instance, if you have a round face, you may look best with a layered or textured wig to balance out the width of your face. Ultimately, though, the style you choose is up to you. The benefit of buying a long wig, is that you can often have them cut and restyled by a local hairdresser.
You'll also need to consider the color of your wig. When shopping online, it can be difficult to choose a color because what you see on your screen may not always be an accurate depiction. If you do buy from the Internet, make sure you read the description thoroughly, and ask a salesperson if you are still unsure about the color.
The material your wig is made from will also have a big impact on how realistic it looks. Real hair wigs are the closest to the real thing you can find, since they are made from actual human hair. They are also harder to maintain, however, so keep that in mind before making a selection. Synthetic wigs range from very lifelike and soft to costume-grade, which is generally not very realistic.