Perfect Locks Straight Seamless Clip-In Hair Extensions in Natural Black  with black clips and a purple tag laid flat on white background.
Close-up view of smooth, chocolate brown hair with a shiny texture and subtle waves, enhanced by Perfect Locks Clip-In Extensions in color 3.
A set of Straight Seamless Clip-In Hair Extensions in Golden Brown  by Perfect Locks with clips and a purple Perfect Locks tag.
Close-up of Perfect Locks Straight Seamless Clip-In Hair Extensions in Honey Blonde , showing fine, natural texture and individual strands.
A set of Straight Seamless Clip-In Hair Extensions in Platinum Blonde  from Perfect Locks, each with metal clips and a purple tag.
Close-up of Straight Seamless Clip-In Hair Extensions by Perfect Locks in highlighted brown auburn (30/31/33), with straight, smooth Remy hair.
Highlighted Pearl Blonde (8/26/613) Straight Seamless Clip-In Hair Extensions by Perfect Locks with clips and a purple tag.
Close-up view of Perfect Locks Straight Seamless Clip-In Hair Extensions in Rooted Black to Silver, with visible strands and smooth texture.
Perfect Locks Straight Seamless Clip-In Hair Extensions in Pumpkin Gold have layered wefts, small top clips, and a purple tag.
Close-up of Perfect Locks Straight Seamless Clip-In Hair Extensions in honey blonde, with a smooth, shiny texture and subtle tonal variations.
Platinum blonde Straight Seamless Clip-In Hair Extensions by Perfect Locks in overlapping rows, metal clips on top, purple tag left.
Close-up of straight, platinum blonde hair strands, neatly arranged and showing the smooth, shiny texture of Perfect Locks Straight Seamless Clip-In Hair Extensions.
Perfect Locks Straight Seamless Clip-In Hair Extensions in highlighted brown auburn, shown flat with clips at the top and a purple tag on the left.
Close-up of straight hair in highlighted brown auburn, showing natural dimension and ideal for blending with clip-in extensions.
A set of Perfect Locks Straight Seamless Clip-In Hair Extensions in rooted cool brown, fanned out, with clips and a purple tag.
Close-up of straight, smooth, rooted cool brown hair with natural highlights and shine—ideal for blending with clip-in extensions.
A set of metal gray Straight Seamless Clip-In Hair Extensions by Perfect Locks with multiple gold clips and a purple tag attached.
Close-up of straight, smooth Perfect Locks Straight Seamless Clip-In Hair Extensions in metal gray, showing fine strands and subtle color variations.
The Perfect Locks Straight Seamless Clip-In Hair Extensions in brown balayage are laid flat, showing wefts with clips and a purple tag.
Close-up of Perfect Locks Straight Seamless Clip-In Hair Extensions in brown balayage, featuring straight Remy hair with natural highlights and lowlights.
A set of Perfect Locks Straight Seamless Clip-In Hair Extensions in silver laid flat, with white clips on top and a purple tag.
Close-up of straight, smooth Perfect Locks Straight Seamless Clip-In Hair Extensions in silver with subtle shine and even texture.
Several Perfect Locks Straight Seamless Clip-In Hair Extensions in burnt orange are neatly arranged, each with small clips on top. One extension has a purple tag.
Close-up of smooth, straight hair in a vibrant burnt orange shade with natural shine and fine lines—perfect for showcasing Perfect Locks Straight Seamless Clip-In Hair Extensions.
Perfect Locks Straight Seamless Clip-In Hair Extensions in highlighted pearl blonde, white clips at top, purple tag on right.
Close-up of straight, long highlighted pearl blonde hair with smooth texture and natural variations—ideal for Perfect Locks extensions.
Perfect Locks Straight Seamless Clip-In Hair Extensions in flawless blonde balayage with brown clips and a purple tag on top right.
Close-up of Perfect Locks Straight Seamless Clip-In Hair Extensions in blonde balayage, with a seamless gradient from dark roots to light ends.
Straight Seamless Clip-In Hair Extensions by Perfect Locks in pumpkin gold, with beige clips, purple tag, Remy human hair.
Close-up of straight, shiny pumpkin gold hair with visible strands, evenly aligned and well-groomed, showcasing Perfect Locks Straight Seamless Clip-In Hair Extensions.
Perfect Locks Straight Seamless Clip-In Hair Extensions in rooted golden blonde with multiple attached hair clips and a purple tag.
Close-up of Perfect Locks Straight Seamless Clip-In Hair Extensions in rooted golden blonde with an ombre blend from brown roots to blonde ends.
Perfect Locks Straight Seamless Clip-In Hair Extensions in rooted golden brown with multiple clip-in fasteners and a purple tag.
Close-up view of Perfect Locks Straight Seamless Clip-In Hair Extensions in rooted golden brown, with straight, smooth, shiny strands.
Straight Seamless Clip-In Hair Extensions by Perfect Locks, rooted black to silver, shown with a purple Perfect Locks tag attached.
Close-up of Perfect Locks Straight Seamless Clip-In Hair Extensions, featuring a rooted black to silver gradient color.
A set of jet black Straight Seamless Clip-In Hair Extensions by Perfect Locks, showing wefts with clips and a purple tag.
Close-up of Perfect Locks Straight Seamless Clip-In Hair Extensions in jet black, highlighting smooth, straight strands and subtle shine.
A woman with long burnt orange clip-in hair extensions poses against a white background, wearing blue eyeliner and a white lace top.
A woman with long, wavy burnt orange hair and bold blue winged eyeliner poses in a white lace top; inset shows her previous look.
A woman with long, straight highlighted pearl blonde hair extensions, in a black zip-up top and gold necklace, stands against a plain background.
Split view of a woman before and after Perfect Locks Straight Seamless Clip-In Hair Extensions in pearl blonde; logo centered.
A woman with long, rooted golden blonde hair extensions wears a fitted off-white dress, standing in a doorway with city and mountains behind.
Two sets of brown to blonde ombre clip-in extensions, 7-piece, 150g set. Info on sizes and types for natural blended volume.
A woman attaches a blonde and brown clip-in hair extension near her roots. Text highlights ethically sourced, seamless, lightweight, and natural-looking extensions for easy application and discreet blending.
Side-by-side comparison of blonde seamless hair extensions and brown classic lace hair extensions on a marble background.
A woman with long, straight, blonde balayage hair shows off her 20-inch extensions. She wears black sleeveless clothes on a light background.
A luxurious purple suede hair extension storage case with gold Perfect Locks logo rests on marble, featuring a matching tag.
Rated 5.0 out of 5 stars.

Straight Seamless Clip-In Hair Extensions

Sale price: $375
4 easy payments of $93.75 or
Color:
Jet Black (1)
1
1B
3
6
27
613
30/31/33
8/26/613
1B/S
33/55
S
Length:
20"
Quantity
In Stock • Ships same day
  • Free shipping $225+
  • 30-day returns
  • 20+ years trusted
Pickup available at Perfect Locks HQ Usually ready in 2 hours

Straight Seamless Clip-In Hair Extensions

Jet Black (1) / 20"

Perfect Locks HQ

Pickup available, usually ready in 2 hours

635 Ygnacio Valley Rd
Walnut Creek CA 94596
United States

+18882904771
Ultra-thin weft base that lies flat and doesn't show through fine hair. The most discreet clip-ins we offer.

Product Highlights:

  • Ethically sourced, 100% human hair
  • Seamless, silicone weft for a flat, undetectable look.
  • Easy to clip in and out for instant volume and length.
  • Lightweight and comfortable for all-day wear.
  • Can be styled, colored, and heat-treated.

Length Guide

Hair extension length guide showing examples from 10 inches to 24 inches on a model

Quick tip: Wavy and curly textures are measured when pulled straight, so they'll appear shorter when worn.

Choosing Your Length

  • Straight - Falls longest (measured as-is)
  • Wavy - Falls slightly shorter
  • Curly - Falls shortest (most volume)

Your hair may include 1-2" extra length since our Remy hair has natural ends. Trim to your perfect length or leave natural.

Need help? Chat with our team

Length Guide

Hair extension length guide showing examples from 10 inches to 24 inches on a model

Quick tip: Wavy and curly textures are measured when pulled straight, so they'll appear shorter when worn.

Choosing Your Length

  • Straight - Falls longest (measured as-is)
  • Wavy - Falls slightly shorter
  • Curly - Falls shortest (most volume)

Your hair may include 1-2" extra length since our Remy hair has natural ends. Trim to your perfect length or leave natural.

Need help? Chat with our team

Color options for this product

Jet Black (1)

Jet Black (1)

Natural Black (1B)

Natural Black (1B)

Chocolate Brown (3)

Chocolate Brown (3)

Golden Brown (6)

Golden Brown (6)

Honey Blonde (27)

Honey Blonde (27)

Platinum Blonde (613)

Platinum Blonde (613)

Highlighted Brown Auburn (30/31/33)

Highlighted Brown Auburn (30/31/33)

Highlighted Pearl Blonde (8/26/613)

Highlighted Pearl Blonde (8/26/613)

Rooted Black to Silver (1B/S)

Rooted Black to Silver (1B/S)

Pumpkin Gold (33/55)

Pumpkin Gold (33/55)

Silver (S)

Silver (S)

Need help? Chat with our team

Colors options for this product

Jet Black (1)

Jet Black (1)

Natural Black (1B)

Natural Black (1B)

Chocolate Brown (3)

Chocolate Brown (3)

Golden Brown (6)

Golden Brown (6)

Honey Blonde (27)

Honey Blonde (27)

Platinum Blonde (613)

Platinum Blonde (613)

Highlighted Brown Auburn (30/31/33)

Highlighted Brown Auburn (30/31/33)

Highlighted Pearl Blonde (8/26/613)

Highlighted Pearl Blonde (8/26/613)

Rooted Black to Silver (1B/S)

Rooted Black to Silver (1B/S)

Pumpkin Gold (33/55)

Pumpkin Gold (33/55)

Silver (S)

Silver (S)

Need help? Chat with our team

Payment Options

Get it now, pay later

Select installments at checkout to split your purchase into 4 interest-free payments $93.75 with Afterpay, Shop Pay, Klarna, or Sezzle. We also offer Interest-free loans through Affirm and Paypal Credit.

  • No fees when you pay on time.
  • No impact on your credit score.

* CA resident loans made or arranged pursuant to a California Financing Law license. NMLS #1353190.

Payment Partners
Accepted payment partners: Afterpay, Shop Pay, Klarna, Sezzle, Affirm, and PayPal Credit logos

Payment Options

Get it now, pay later

Select installments at checkout to split your purchase into 4 interest-free payments $93.75 with Afterpay, Shop Pay, Klarna, or Sezzle. We also offer Interest-free loans through Affirm and Paypal Credit.

  • No fees when you pay on time.
  • No impact on your credit score.

* CA resident loans made or arranged pursuant to a California Financing Law license. NMLS #1353190.

Payment Plan Partners
Accepted payment partners: Afterpay, Shop Pay, Klarna, Sezzle, Affirm, and PayPal Credit logos

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Pro Stylist Benefits

Pro Stylists Save Big!

Take your business to new lengths with exclusive Pro Stylist savings on each and every order. Add items to cart and see the savings grow!

  • 20% off any order amount
  • 25% off your order $500+
  • 30% off your order $1000+

* Cannot be combined with other promotions or discounts.

Pro Stylist Benefits

Pro Stylists Save Big!

Take your business to new lengths with exclusive Pro Stylist savings on each and every order. Add items to cart and see the savings grow!

  • 20% off any order amount
  • 25% off your order $500+
  • 30% off your order $1000+

* Cannot be combined with other promotions or discounts.

Not sure which texture or shade is right for you?

Ultra-Thin PU WeftSeamless Clip-Ins hair extensions

Seamless Clip-Ins

Invisible attachment

Our most invisible clip-ins - ultra-thin wefts that disappear completely. Creates the most natural, undetectable, luxurious volume possible.

  • All hair types
  • Especially good for fine hair
  • All textures
  • 100% Remy human hair with aligned cuticles for minimal tangling
  • Ultra-thin silicone weft lies completely flat
  • Ideal for fine or thin hair - zero bulk at attachment
  • Lasts 6-12 months with proper care
  • Heat-stylable up to 350°F with heat protectant
  • Daily on/offWear time
  • 450°FHeat safe
  • 7Per pack
  • Ready to WearSkill level

Product Information

Customer Reviews

Verified photos and videos from customers wearing this hair.

Customers praised these clip-in extensions for their exceptional quality and natural appearance. Reviews highlighted how "flawless" and undetectable they are, with many noting they blend perfectly with natural hair. The seamless design is lightweight and comfortable. Shoppers appreciated the longevity, with sets lasting over a year.

Quality (positive)Extensions (positive)Hair (positive)Clips (positive)Color (positive)
  • 5 stars: 8 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
T
Tepha (Walnut Creek, California, United States)
Stylist: Yes
Quality:
Poor
Exceptional
Color:
Not Quite
Perfect Match
Texture:
Not Quite
Perfect Match
Customer: More than 6 months
The best extensions I have ever tried.

I was recently gifted these extensions but will be buyer more from them. I’ve tried countless brands and these bag far are the best I have tried

J
Jamese V. (Hercules, California, United States)
Stylist: No
Quality:
Poor
Exceptional
Color:
Not Quite
Perfect Match
Texture:
Not Quite
Perfect Match
Customer: More than 6 months
Amazing hair

Amazing hair. Looked flawless. Couldn’t even tell I had clip ons.

C
Claudia H. (San Bruno, California, United States)
Amazing clip-ons!

I am blown away by the quality of these extensions. I love how flat the clip-ons are, very easy to put on and they blend perfectly with my hair. My husband couldnt even tell what was my hair and what was extensions. They look so natural! Definitely would recommend! Worth the price!

Dear Claudia, Words can't express how happy your review made us! <3 This is exactly why we provide amazing quality extensions- to make our customers are happy and give them the most natural look! Our clip-in sets are excellent at adding instant length and volume. We hope you keep loving our brand! :), Perfect Locks Team ❤️

A
Anonymous (Dallas, Texas, United States)
These look so natural and the color blends perfectly!

They’re so easy for me to put in. They do not feel heavy at all. I love this color , it blends the best with my hair. This is my third set of extensions from perfect locks . I love the seamless but I also have the original and they’re really lightweight on my head . It’s just quality hair every time so it works no matter what . It’s beautiful ! They last longer than any I’ve purchased elsewhere. I think it’s been a year on my first set and they still look 👌

Dear Doll, Thank you so much for writing this review as this does mean so much to us! We appreciate you! Please be sure to tag us in any photos we'd love to feature you all on our website and/or social media platforms. XO, Perfect Locks Team ❤️

N
Nicole H. (Phoenix, Arizona, United States)
I am very happy with my hair

It’s the only Hair I buy cause it’s amazing!

Dear Nicole, So beautiful! We appreciate your feedback and are so happy to hear Perfect Locks Extensions is the only hair you trust! <3 We love your loyalty with us! Perfect Locks Team ❤️

P
Pearl (Pittsburg, California, United States)
love this hair

I've used several types of hair extensions and this hair is the best! These clip ins are not noticeable and comfortable. Will be buying more different colors for highlighted effects in future.

Dear Pearl, Thank you so much for leaving your kind feedback! We are so happy to hear our Seamless Clip-In Extensions has been the best you've had! These extensions are beyond amazing. They are lightweight and lay flat against your scalp allowing a seamless blend. Buying more colors for a highlighted effect sounds spectacular and this means less damage to your own hair. Extremely exciting. Thank you again! :), Perfect Locks Team ❤️

M
Madison (San Angelo, Texas, United States)
I love them!!

Had some issues with shipping but customer service helped me figure it out. They were very helpful! The extensions are beautiful and well worth the money. I’ve been wearing extensions for 10; years and this is by far the best quality I’ve received. Looks/feels like my real hair, very natural. I will be repurchasing again in the future. Thank you Perfect Locks for giving me confidence in my hair again! I normally don’t ever write reviews for anything but felt compelled to. If you’re on the fence take the plunge, you won’t be disappointed!

Dear Paul, Thank you for leaving your feedback. We are extremely happy that you love our Seamless Clip-ins Hair Extension you purchased. Our Seamless Clip-ins Hair Extension are so convenient and makes styling your hair fun! We hope to continue to provide you with products you'll love ❤️ Have a Perfect day! Perfect Locks Team ❤️

j
julena l. (Saint Paul, Minnesota, United States)
Extensions

I am a professional. All the extensions I have purchased with perfect locks have been of good quality and color. I will continue my orders and hope the customers service and product continues with quality and the help of customer service. It really matters. I serve many customers and need to be able to stand behind what I am offering.

Dear Julena, As a professional stylist providing us this lovely feedback, we appreciate your time and honesty. We work around the clock to ensure we provide the best quality in all aspects and hope to continue meeting and exceeding all your expectations. Thank you! xoxo - Perfect Locks Team, Perfect Locks Team ❤️