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18 Inch Straight Hair Extensions
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Ready to level-up your look without any difficulty? Thathair 18-inch straight halo extensions are the ideal mid-length choice for adding smooth, sleek length and natural-looking volume in only a few seconds without damage, glue, or clips. Just put it on, blend, and adjust. It's that easy! Get ready to turn heads with hair that feels and looks like your own.
What Makes Thathair 18-Inch Straight Hair Extensions the Best Option?
18-inch halo hair extensions are a great option for anyone who wants to up their hair game but at the same time keep their natural look and carefree style. Compared to the 16-inch model, they provide more obvious length and volume, which makes them ideal for people who want a little more drama without going overboard. It doesn't matter if you wear your hair straight, curled, or in a loose braid; these extensions give your hair the perfect amount of flow and elegance, making them perfect for medium-length to long hairstyles.
Here’s why our 18-inch straight halo extensions stand out from the rest:
✔ Silky, High-Quality Fiber – Made from premium Kanekalon, this fiber blend mimics real hair so closely it’s hard to tell the difference. It’s soft, lightweight, and holds its smoothness longer—perfect for everyday wear.
✔ No-Fuss Application – You won’t need a stylist or tools. Just place the halo, adjust the wire, blend it in—and you’re out the door in minutes.
✔ Invisible Finish – The 18-inch straight halo blends effortlessly with your natural hair, giving you volume and length without obvious transitions.
✔ Everyday-Comfort Fit – The lightweight feel and flexible wire make it easy to wear all day, with zero slipping or tugging.
✔ Style-Ready Length – Whether you like sleek ponytails, loose waves, or polished straight looks, this length gives you tons of styling room without going ultra-long.
✔ Gives the Illusion of More Length – Straight extensions appear longer than curled ones of the same size—so your 18-inch halo delivers a noticeably extended, smooth look without the commitment of super long hair.
✔ Speedy Shipping + Stress-Free Returns – We get your order out fast, and if it’s not quite right, we’re happy to help you exchange or return.
✔ Backed by Real Reviews – Our customers keep coming back for a reason: they trust the quality and love the transformation.
Length Guide for Straight Halo Extensions
Our 18-inch halo extensions are a popular mid-long option—falling around the bra strap area for most wearers. They’re perfect if you want noticeable length and volume without going too dramatic. It’s a flattering, everyday glam length that works for both casual and formal looks.
We also offer:
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14 Inch Hair Extensions – Adds subtle volume and light length, ideal for shoulder-length styles.
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16 Inch Hair Extensions – The go-to for a natural, fuller mid-back look.
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22 Inch Hair Extensions – For those who love bold, extra-long hair that turns heads.
Whichever length you choose, you’ll get a smooth, lightweight, and easy-to-style transformation in minutes.
Let’s Find Your Perfect Match
Getting the color right is super important. For the best match, try to choose a shade that’s close to the ends of your hair, not the roots. Since the halo sits underneath, matching the bottom part helps it blend in better.
Not sure between two shades? Going a little lighter often works best—it gives a soft and natural look.
We offer a variety of base colors, each with different tones, so it’s easy to find one that works for you.
- 18 Inch Blonde Hair Extensions
- 18 Inch Brown Hair Extensions
- 18 Inch Black Hair Extensions
- 18 Inch Red Hair Extensions
- 18 Inch Grey Hair Extensions
With this in mind, we created Color-Matching quiz to help you get your perfect shade in minutes.
18 Inch Straight Halo Hair Extensions: Before and After
See the difference for yourself! Check out these before-and-after transformations and how they naturally add length and volume.
Customer Testimonials
https://www.trustpilot.com/review/thathair.co
Halo Hair Extensions vs. Other Hair Extensions
Feature |
Halo |
Clip-in |
Tape-in |
Sew-in |
Damage |
No damage sits on an invisible wire. |
Low risk if worn occasionally, but frequent use can cause breakage |
Adhesive may weaken hair over time, especially with removal |
Tension from braids can cause hair breakage |
Installation Time |
Under 1 minute |
5-15 minutes |
30-60 minutes—requires professional application |
2-4 hours—salon required |
Comfort Level |
Lightweight,no headaches |
Can feel bulky with multiple wefts |
Tape can feel tight at first |
Can feel heavy and tight, especially after installation |
Longevity |
1+ year with proper care |
6-12 months |
4-8 weeks before maintenance |
6-8 weeks before retightening |
Styling Freedom |
Can be curled, straightened & styled easily |
Very flexible for styling |
Heat should be kept away from adhesive areas |
Styling limited by track placement |
Scalp Friendliness |
No pulling, ideal for sensitive scalps |
Can feel heavy or cause mild tension over time |
Some may experience irritation from adhesive |
Tension from braids can cause scalp discomfort |
Best for Beginners |
Easiest option—no skills required |
Easy once placement is learned |
Requires professional application & removal |
Requires professional salon work |
Frequently Asked Questions
How to blend halo extensions with layered hair?
Choose a length that matches your longest layer. If needed you can slightly trim the extensions.
If I want both volume and length what option should I choose?
To maintain a natural look, one halo is enough if your hair is medium thickness. For thin hair or extra volume, layering two halos of different lengths (e.g., 16” for volume + 20” for length) creates the desired effect.
How do I prevent my halo from slipping, if I have silky hair?
Try backcombing the roots at the crown before placing them. It adds grip. A hair spray or dry shampoo also helps with that.
Can I wear my halo with a high ponytail or updo?
Yes, but with some adjustments. Secure the halo lower on your head and leave the top layer of your natural hair out to cover the band.
What products should I use (or avoid) to keep my extensions looking fresh?
Use sulfate-free, alcohol-free shampoos and conditioners. Avoid heavy oils or silicone-based products, as they can weigh down the hair.
Can I sleep with my halo extensions in?
No. Always remove your halo before sleeping to prevent tangling. You can store it in a silk bag or hanger.
Will my halo stay in place if I’m dancing or working out?
Yes, if they are properly secured. Teasing the roots and using a light-hold hairspray help with grip. For high-movement activities, opt for a half-up style to keep the halo in place.
How do I take care of my straight hair extensions so that they last longer?
Wash them with sulfate-free shampoo only when it’s absolutely needed. Better let them air dry rather than blow drying, and store them in a box to avoid tangling or damaging.
Can I curl my straight halo hair extensions?
Yep! You can style it just like your own, they are heat-friendly. But as you would do with your natural hair, make sure to keep the heat at a reasonable level to avoid damage.
Can I dye my halo extensions?
Although not recommended the answer is yes. You can dye them, but only go darker, not lighter—bleaching can damage your extensions. If you need a different shade, we are here to help you easily exchange your product and get you a new one, that fits you better.
Will a halo extension work if I have thin or fine hair?
Yes! Just make sure to place the halo a little lower on your head so it blends in better. You can also tease the roots a bit for extra grip. If your hair is super fine, a few strategically placed bobby pins can secure your hair better and help keep everything in place.