18-inch Straight Hair: The Cool Trendy Hair Length For 2023

18 inch straight hair
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Which is the ideal length of hair do you think, ladies?  Many girls cut their hair short because they think short hair is easier to manage but it is obvious that various gorgeous hairstyles can be created with long hair. 18-inch straight hair is the most popular option for length and volume, follow us to make the best use of your 18-inch straight hair.


18 inch straight hair

1. What is 18-inch straight hair

  • Straight hair: There are a host of types of  bone straight hair: 1A, 1B, and 1C. As a whole, bone straight hair tends to be shiny because straight surfaces reflect more light. Of course, we are also talking about bone straight hair that is straightened by using styling tools hair products. In another word, if your hair dries straight without a bend or curl, then your hair is straight.
  • 18-inch straight hair: with the same hair length, different hairstyles have a great impact on how long your hair appears. Obviously, you can see its actual 18-inch length in its entirety if your hair is straight. 18 inches of hair is supposed to be around your mid back.
Definition of 18-inch straight hair

Definition of 18-inch straight hair

2. Characteristics of 18-inch straight hair

To discover all about the characteristics of 18 inch straight hair, let’s dig into the top 5 features. They are about the 18 inches hair length chart, hair length in body height, hair source, hair restyling ability and popular hairstyles.

Features of 18 inch straight hair

Characteristics of 18-inch straight hair

Hair Color Black/Custom Colors
Hair Length 18 inches
Hair Texture Natural Straight
Hair Type Hair Weft
Hair Weight 100g
Unit Bundle, 1 Bundle = 100g
Restyle possibility Can Be Dyed/Curled

2.1 Hair material of 18-inch straight hair

In terms of materials, there are 2 common groups. They are human hair and synthetic hair.

  • Human hair is high-quality, natural-looking and long-lasting. There are 3 types of human 18 inches hair with 3 quality and price levels. They are virgin, remy and non-remy hair. Virgin is one-donor hair, intact, best-quality and most expensive. Remy is multi-donor hair with good quality. Meanwhile, non-remy hair is multi-donor hair but with low quality and cheapest price.
  • Synthetic hair is made of plastic fibers. They are cheap for sure. Besides, the quality is definitely so low.

2.2 Hair quality of 18-inch straight hair

Talking about the hair quality of the 18-inch straight hair is talking about 3 quality grades: super double, double and single drawn hair. These terms are used to indicate the fullness (volume) of the 18 inch weave bundles. Bundles with a large portion of strands having the same length ensure the best fullness (super double drawn). The double drawn is less full, and the single drawn is least full.

Besides, there is also another way of naming the quality grades using A.This is popular in China. Super double drawn hair is 10-12A. Double drawn hair is 8-10A. Single drawn hair is 5-8A.

2.3 How long is 18 inch hair length & 18 inch straight hair chart?

Talking about the characteristics of 18-inch straight hair is firstly talking about its length. The 18 inch straight hair chart is 18 inch long. This length of straight hair is measured from the hair root to the hair tail. This is a perfect medium length which is suitable to create all hairstyles and fashion vibes.

In case you want the conversion of the 18 inch hair length into centimeters, here is the hair length chart to consider. You will see that 18 inch straight hair is equal to 45cm.

18-inch straight hair chart

Hair Extension Lengths Guide: How long is 18 inches of hair length

2.4 How long is 18 inch of hair in body height

Besides bone straight hair length in exact measure, you can also consider hair length in terms of body height. The 18-inch straight hair is supposed to reach your mid back. However, it also depends on your height and body proportion that the 18 inch bone straight hair can look different. It can be longer or shorter than your mid back. In general, it still looks medium, not too long or too short.

Straight hair 18 inches by body height

18-inch straight hair in body height: How long is 18 inches of hair in body height

2.5 Source of 18-inch straight hair

Where to buy 18-inch straight hair? There are 3 largest Asian exporters of 18 inch bone straight hair worldwide, they are Vietnam, China, and India. With state-of-the-art technologies, Asian countries, especially Vietnam, rank at the top about both quality and quantities of the 18 inch weaves. In the diverse market with multiple choices of hair length products, they can still conquer the most demanding customers all over the world.

Vietnamese Hair Factory is the best and highest quality in the hair market. Vietnamese Hair Extension is a loved choice of many wholesalers in the hair business, especially in Africa. Read more at Vietnamese hair- the best hair quality to invest in the hair market

Source of Vietnamese hair

Source of Vietnamese hair: the best and highest quality in the hair market

3. Can I bleach and dye my 18-inch straight hair?

The question is: “Can I bleach and dye my 18-inch straight hair” If your hair is naturally straight hair and healthy enough to apply any chemical effects, then you can bleach and dye any color you want. All types of 18 inch straight hair such as bone straight hair, kinky straight hair, Brazilian straight hair can comfortably style without damaging your hair.

It is best if it has not been heat-treated because your hair may be damaged after that process. Another option is that you can dye your hair without bleaching, that way is much safer, you can click here for more information: How to use purple hair dye for dark hair without bleaching

18 inch straight hair bleach

Bleach 18-inch straight hair: you can dye your hair without bleaching

4. Hairstyles with 18-inch straight hair

Whatever color it is, even you use different types, your straight hair will surely be shiny under any circumstances. We suggest some of the most gorgeous hairstyles with 18-inch straight hair:

  • Flipped out straight hair: Long 18 inch bone straight hair is the benchmark of women’s beauty, it gives locks extra movements and body. Despite being a little messy at the end of your bone straight hair, it still seems elegant.
flipped out straight hair

let try flipped out straight hair

  • Neat long layers: Layers in hair bring more volume, make thin strands look fuller. If the hair care process is too hard for you and you don’t have much time for it, then neat long layers are the best choices. There are so many lovely hairstyles with extra layers that you can try
neat long layers

style neat long layers

  • Wide surface braid: This is one of the most charming styles for bone straight hair. It may take you more time to have an agreeable style for 18 inch kinky straight hair but I bet it will be worth it.
Wide surface braid

Style Wide surface braid: one of the most charming styles for bone straight hair.

  • Highlight: It will be a great combination if your dark kinky straight hair is mixed with some light strands. This trend is never foggy throughout the centuries.
highlight hair

Style highlight hair: trend is never foggy throughout the centuries.

  • Half-up hair: There are a lot of styles for kinky straight hair  that come with half-up hair. It can be a flower, an animal…that will definitely make you look special.
half up hair

Style half up hair: that will definitely make you look special.

5. Must consider things before styling your 18-inch straight hair

The simplest choice is just falling flat on your 18 inch kinky straight hair, letting it flow with the wind and the eyes of men. Or if you are a strong character person, you can style it whatever you want.

These are things that you should take into account before chopping off your hair:

  • Face shape: Have you ever seen yourself in the mirror and wondered what kind of shape it is? If it is hard for you, just take the advice from the professor to know if it is: round, long, square, or heart-shaped then pick a suitable hairstyle like bone straight hair, kinky straight hair or Brazilian straight hair.
  • Your hair’s texture: Layers can do a lot to thick curly hair. For example, short layers for 18 inch kinky straight hair in front of your face tend to soften your look
  • Your personality: For instance, if you like blue, then you can tell people this personality by your kinky straight hair color. Personality has a great impact on your hairstyle.
  • Your lifestyle: For example, if you work as a Masterchef, you had better make it as simple as possible.

6. 18-inch straight hair extension types

To make it clear about all types of 18 inch straight hair extensions, we will divide them into 2 main groups: one based on the origin or the brand and one based on the installation method. In terms of brands, we will introduce the top 5 most popular ones from Vietnam, China, South Africa, Brazil and Russia. In terms of applying methods, we will introduce 4 most popular types. Let’s see what they are!

Types of 18 inch straight hair

18-inch straight hair extension types

6.1 18-inch straight hair extension types based on brand

Below is the information about straight hair extensions from 5 countries including Vietnam, China, South Africa, Brazil and Russia. We will focus on the most basic points to remember about them.

18 inch human hair Vietnamese straight hair

Vietnamese 18-inch straight hair extensions originated from Vietnamese women’s hair which is of great quality thanks to good weather and healthy lifestyles. The hair is super smooth, supple and silky.

Besides, the prices are of the most reasonable range in the market. Vietnamese hair is a highly recommended choice.

18 inch Chinese straight hair

China is also a well-known straight hair extension supplier in Asia. Unlike Vietnam which is famous for high quality and affordable hair, China is famous for super cheap 18 inch straight hair extensions.

Because of the cheap raw imported hair sources as well as the 18 inch straight hair length industrial production scale, Chinese factories can save a lot of money on the hair production and offer such an attractive price range. However, the price of straight hair is worth the quality, so you’d better consider carefully before buying hair here.

18 inch South African straight hair

South Africa is famous for reselling 18-inch straight hair. In this African country, natural straight hair is not as loved as the kinky straight hair and Yaki straight hair. These two styles of straight hair are typical in Africa.

Both the quality and price of kinky straight hair and Yaki straight hair can vary depending on origin suppliers.

18 inch Brazilian straight hair

18 inch Brazilian straight hair is referred to as one of the most luxurious 18-inch straight hair brands. However, the truth is becoming clearer these days about 18 inch Brazilian straight hair.

It is pointed out that almost all Brazilian hair extensions, are imported from overseas and then labelled as high-end Brazilian brands. As a result, the price of Brazilian straight hair is always high, but the quality of Brazilian straight hair varies depending on the source of hair suppliers.

18 inch Russian straight hair

Russia is the biggest supplier of 18-inch straight hair in Europe. The natural Russian hair is blond, silky and durable. However, the source of 18 inch straight hair is not abundant, and many factories have to rely on imported raw hair.

To maintain the luxury brand, Russian factories usually import high-quality straight hair from Vietnam or so on. After a modern production process, the hair will still be sold at a high price.

6.2 18-inch straight hair extension types based on installation

The 4 most popular types of 18 inch straight hair extensions with different installations are hair wig, sew in weave, clip in and tape in hair extensions. Below is brief information about all the 4 types.

18 inch straight hair wig – The best straight hair wig

If you are searching for a quick and effective way to cover baldness, a 18-inch straight hair wig is a good choice. The straight hair wig is usually made of about 3 bundles and a closure, so it can cover all your head.

The point is that the price of straight hair wig is pretty high, so you can take it into consideration and also consider 3 other types below.

18-inch straight hair wigs

18-inch straight hair wigs: The best straight hair wig

18 inch weave straight – 18 inch straight hair sew in

Weave hair extensions or weft hair extensions are one of the most popular types of straight  hair extensions in the market. The most frequent method used to install an 18-inch straight hair weft is to sew in the hair.

The hair is literally sewn on the braids in the middle layer of the hair with a curled needle and thread. This is a damage free method and can last for up to 2 month before the next re-applying.

18 inch clip in hair extensions – Best temporary 18 inch hair straight extensions

18-inch straight hair extensions clip in are an effective temporary method to apply straight hair extensions. With a clip in extension, you can quickly clip it in every morning with just about 10 minutes.

This is a perfect choice for ones who don’t want to go to sleep with hair extensions and want to change the extensions often. The clip in type is also not harmful to your hair.

The beauty of clip-ins is in their easy installation and removal. If you’re not ready for the commitment that comes with micro-links and tape-in extensions or can’t be bothered with the effort of a weave, this may be the solution. Varying in length and style as available in human and synthetic hair forms, you have many options to choose from (Source:

18 inch tape in hair extensions – Best semi permanent 18 inch straight hair extensions

The most popular semi permanent straight hair type is the tape in hair extensions. To use this type of extensions, users will need to stick the tape on each hair piece on the middle layer of the real hair.

The tape straight hair is usually flat and looks pretty natural. It is also quite durable and can last for 6-8 weeks.

18-inch straight hair extensions

18-inch straight hair extensions: Best semi permanent 18 inch

7. How to import wholesale Human Hair for 18-inch straight hair

In the 18 inch straight hair industry, there are so many competitors from all over the world, especially in Vietnam. Let’s see how Vietnam monopolizes the hair market in Asia with many types of straight hair.

K-hair: Vietnamese hair Supplier

K-hair: The most reliable Vietnamese hair Supplier

K-hair factory K-hair is Vietnam’s largest manufacturer. delivering wholesale orders to all international traders, especially in Africa (Nigeria, Ghana, South Africa, etc.) and America (Russia, Brazil, Dubai, etc.). With more than 30 years of experience in the hair industry, K-hair 18-inch straight hair products can surely meet the strict requirements of either inland and 18 inch straight hair length overseas customers.

About 18 inch straight hair, they have many types like 18 inch bone straight hair, 18 inch kinky straight hair, 18 inch straight hair wig.

In addition, you can also refer to our other 18 inch hair extension hairstyles

See more information about the prices of list K-hair’s Product:

Contact For More Information:

  • Address: 10a, 171 Nguyen Ngoc Vu, Cau Giay District, Hanoi, Viet Nam
  • Hotline: +84 96 – 789 – 4448
  • Email:
  • Website:
  • Fanpage:
  • Instagram:
  • Youtube Channel:

8. FAQs about 18-inch straight hair extensions

Vietnamese girls are born with straight hair and remain it till they are adults. Undoubtedly, Vietnam is the largest market that produces 18 inch bone straight hair. Besides, there are also many countries with women having straight hair such as China and Cambodia.

18 inches can be ideal for everyone because it is simple to style, and it will look more gorgeous. They also have many styles like bone straight hair, kinky straight hair, straight hair wig, Brazilian straight hair. The kinky straight hair will reach right at your waist and it is the most desirable length because it is long enough to see the volume and thick enough that the hairdresser can make them soft and shiny.

If the hair is long and thick, 2 bundles can be enough to make a full wig. However, to ensure a voluminous hairstyle, 3 bundles are better. 1 full lace wig usually requires 3 bundles and 1 lace closure or frontal.

It depends on the hair extension types. 1 bundle of 18-inch straight hair weft hair extension weighs 100g. Meanwhile, 1 piece of keratin tip hair extension weighs only some grams. 1 piece of clip and tape hair extension is a bit heavier. Normally, 1 bundle of I tip contains 50 pieces, and 1 bundle of clip-in contains about 20 pieces.

To look natural, the hair extensions need to blend well with customers’ real hair. Therefore, hair extension types with high blending possibility are the most natural-looking. They are sew-in, tape-in and clip-in hair extensions, especially when the extension and the real hair lengths have only a small difference.

To sum up, the 18-inch straight hair is an ideal item of hair extensions. This hair type has a variety of materials, extension types, styles and outstanding features. Choosing to use hair extensions at 18 inches can create amazing looks.

I started working in the wholesale hair business and quickly realized that this is truly what I desire doing. My mission is sharing hair knowledge, supporting hair starters worldwide and warning them from unreliable foreign wholesale hair vendors. With experience and passion, I led K-Hair Factory to become the top 1 hair factory in Vietnam, accompanying 1000+ hair sellers all over the world. It’s my pleasure to be your long-term companion in your business journey.

Mrs Cherry Hair Expert

Mrs Cherry Hair Expert

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