Youngsee Hair

Virgin Flat Silk Weft Extensions Virgin Human Hair Weave Dark Brown #4 |YoungSee

$215.99 USD $151.99 USD Sale
Length: 14"
Weight (2-3 bundles for a full head): 2 bundles 100g (Recommend)


Flat Silk Weft Extensions are a modern and innovative approach to hair extensions that offer a seamless and natural look. They are designed with a thin, flat construction that lays close to the scalp and high-quality silk material as the base for the wefts. YoungSee flat silk wefts are known to be the most practical type of extension since they are more affordable and can also be cut to size, and have no return hair. Unlike hand-tied wefts, which can not be cut, flat silk wefts can. This makes them more customizable and installs a slightly easier process.

  • TYPE: Weft Hair Extensions (100% Virgin Human Hair)
  • COLOR: Dark Brown #4
  • WEIGHT: 50g / bundle, 100-150g for a full head
  • LENGTH: 14"-24"
  • SETTING: Can be washed, dyed, cut, styled and curled
  • TEXTURE: Natural straight, with a natural wave when wet or left to air dry or diffused.
  • LIFESPAN: 6-12 months
 Minimum 2-3 bundles
Medium Hair 4-5 bundles
Thick Hair 6-7 bundles



    Flat silk weft combines the best of both worlds in machine and hand-tied wefts to give you long-lasting comfort and ultimate customization.
    • Ultra-thin & Customizable: As thin as hand tied weft and can be cut freely without shedding, which is ultra-thin which is 30% thinner than common wefts.
    • No Tangle, No Knotted: Silk solidifies the weft firmly, strong and won't tangle easily. Add double-stitched to make it firmer to avoid hair shedding problem. And it's the least damaging type of hair extensions.
    • Flat & Comfortable: Designed with a thin, flat construction that lays close to the scalp, creating a virtually invisible and comfortable result. It uses high-quality silk material as the base for the wefts as its softness, durability, and natural shine, which closely resembles the texture and appearance of real hair without any added bulk or discomfort.
    • Budget-friendly: When it comes to somebody who already has medium to thick hair and want a budget-friendly weft and the ultimate result, nothing beats flat weft extensions. Flat wefts are known to be the most practical type of extension since they are more affordable.

    features of flat silk weft

    Difference Between Wefts

    Flat Silk vs. Hand-tied vs. Machine Weft

    • Flat Silk Weft

    Construction: Made with a thin, flat base using high-quality silk material. They lay flat against the scalp, providing a seamless and natural look.
    Advantages: Lightweight, comfortable, and virtually undetectable. They offer a natural feel and are versatile in styling options.
    Application Method: Often attached using silicone-coated micro beads or tape tabs, which are secure and gentle on the hair.
    Recommended for: Individuals looking for a seamless and natural-looking extension with minimal damage to their natural hair.


    • Hand-Tied Weft

    Construction: Made by hand, where strands of hair are manually tied together to create a weft. The weft is thinner and flatter than machine wefts.
    Advantages: Provide a seamless look and lay flat against the scalp. They offer a natural appearance and are comfortable to wear.
    Application Method: Typically sewn onto the natural hair using a beading or braiding technique. They can also be applied with tape or clips.
    Recommended for: Those seeking a natural and lightweight extension method that allows for easy styling and blending.


    • Machine Weft

    Construction: Made using a machine that sews strands of hair together, creating a thicker and more robust weft.
    Advantages: Typically more affordable and provide added volume due to their thicker construction. They are readily available in various lengths and colors.
    Application Method: Often sewn onto natural hair using braiding or beading techniques. They can also be applied with tape or clips.
    Recommended for: Individuals looking for a cost-effective option with added volume and thickness.
    The difference between Flat Silk Weft and Machine Weft
    hand tied weft vs flat weft human hair vs machine weft

    Which one should I choose among Genius Weft, Hand-tied Weft, Flat Silk Weft and Machine-sewn Weft?

    At YoungSee, there are 4 most popular wefts. They are the most perfect Genius Weft without baby hair, the flat and comfortable Flat Silk Weft, the Hand-tied Weft specially designed for fine & thin hair that is invisible but not cutable, and the thickest and most affordable Machine-sewn Weft. 

    The images below presents you with a captivating visual journey that unveils the unique advantages and differences of four popular weft styles. While our spotlight shines brightly on the incredible Genius Weft, we understand that everyone has their own preferences and needs when it comes to hair extensions. Our goal is to provide you with a comprehensive overview so that you can make an informed decision and discover the perfect hair extensions that will unleash your inner beauty. 
    The difference between YoungSee 4 weft
    the unique advantages and differences of four wefts
    Length Guide

    Do you know how to choose the length of hair extensions? The image below shows the before and after of wearing hair extensions and the conversion between inches and centimeters. If you don't know which size is right for you, you can refer to the picture below.

    How to Choose Hair Length?


    There are some real pictures after choosing the correct length.

    Before and after comparison of wearing youngsee hair extensions

    Before and after comparison of wearing youngsee hair extensions

    Before and after comparison of wearing youngsee hair extensions

    Installation Method

    There are 4 ways to install Hair Weft: 

    • Directly Sew: Sew weft directly into your hair.
    • With Micro Ring: Using beads allows you to attach hair.
    • With Glue: Fasten the tape to the seam of the weft, glue the hair pieces into your hair.
    • With Clips: Sew the small clips onto the weft.
    How to apply hair weft


    Hair Weft Care
    Caring for hair wefts is essential to maintain their quality and prolong their lifespan. Here are some tips on how to care for hair wefts:
    1. Washing & Conditioning: Use a sulfate-free and paraben-free shampoo to wash the hair wefts. Gently massage the shampoo into the hair, avoiding rough movements that could tangle or damage the wefts. Rinse thoroughly with cool water. Try to only wash two or three times a week. Max. To get through the week with as little washes as possible, pick up a great dry shampoo. Apply a good-quality conditioner to the hair, focusing on the mid-lengths to ends. Avoid applying conditioner directly to the root area or the weft attachment points, as this can weaken the bond.
    2. Detangling: Use a wide-tooth comb or a special loop brush designed for hair extensions to detangle the hair gently. Start from the ends and work your way up to the roots, being careful not to tug or pull excessively. Brush often, detangle each morning + before bed at night. Place your hand at the top of your weft to avoid extreme pulling or tugging when brushing your hair.
    3. Drying: Pat the hair wefts dry with a towel to remove excess water. Avoid rubbing or wringing the hair, as this can cause tangling. Let the hair air dry whenever possible to minimize heat damage.
    4. Bedtime Care: Before going to bed, loosely braid or tie the hair in a low ponytail to prevent tangling while sleeping. You can also use a silk or satin pillowcase, as these materials create less friction and reduce the risk of hair breakage.
    5. Avoiding Chemicals: Minimize exposure to chlorine from swimming pools and saltwater from the ocean, as they can be harsh on the hair and cause fading or dryness. If you swim, wear a swimming cap or rinse the hair immediately after to remove any harmful chemicals.
    6. Regular Maintenance: Schedule regular maintenance appointments with a professional stylist to ensure the wefts are secure and in good condition. They can also trim any split ends to keep the hair looking healthy.
    7. Avoiding Heavy Products: Avoid using heavy styling products or oils near the weft attachment points, as this can lead to slippage and premature loosening of the wefts.
    • Use sulfate-free shampoo and conditioner.
    • Curl, style, dye to darker color.
    • Wash, dry, brush gently, always from root to end.
    • Use heat protection.
    • Sleep with a silk pillow.
    Click the image below to know more about hair care.
    How to Care Hair Extensions?
    About Virgin Hair
    what is virgin hair


    What is Virgin Hair?

    • Virgin hair is directly taken from the human head and does not undergo any chemical alteration or cleansing process. It has to be 100% pure.
    • It cannot have gone through any kind of chemical processing, so when you purchase this hair, it has not been permed, bleached, blow-dried, gone through any other chemical processing.
    • It's from one single donor, so each bundle you buy should be from the same donors(the donor could be Indian, Malaysian, Brazilian, etc). This has not been exposed to any kinds of harsh agents and the cuticles all still have to be intact and running in the same direction.

    high quality virgin hair


      Virgin Hair VS. Remy Hair

      With the popularity of hair extensions, hair-receiving enthusiasts have more choices. There are many different types of hair extensions in the market today, so what is best for you? What is the difference between different hair extensions and what is virgin hair? Why is virgin hair so popular? Next, let’s understand the difference between virgin hair and remy hair.
      The difference between remy hair and virgin hair
      Youngsee virgin hair VS Regular Human hair


      Virgin Hair Collections


       virgin genius weft

      flat silk weft

       virgin machine weft

      virgin i tip hair

       virgin u tip hair

      virgin tape in hair

       injection tape ins


      FAQ on Flat Silk Weft

      1. Can I cut flat silk weft?
      - Yes. The flat weft is almost as thin as a hand tied weft, yet can be cut like a machine weft. Unlike a hand tied weft which cannot be cut due to its delicate nature, the flat weft can be cut. The flat weft is bound together by silk making it extremely strong.

      2. Can flat silk weft hair extensions be reused?
      - In many cases, flat silk wefts can be reused for multiple installations if they are well-maintained and in good condition. However, this also depends on the installation method and the hairdresser's expertise.

      3. Are flat silk weft hair extensions suitable for all hair types?
      - Flat silk weft extensions can work well for various hair types and textures. However, the installation process and the type of hair used may vary based on individual hair characteristics.

      Checking more questions & answers on FAQ Page. And if you have more questions, please contact our email. (

      Length: 14"
      Weight (2-3 bundles for a full head): 2 bundles 100g (Recommend)

      Product information

      youngsee color match


      Find your Perfect Shade

      1. Take some photos of your own hair. Photos must be without filters, avoid taking pictures in direct sunlight. It's good to have a back view of your hair and make sure it's down.
      2. Send us the picture and wait for our customer service to reply you your color matching as soon as possible! (email:

      youngsee hair multiple color options

      Free Shipping

      All orders ship same day if placed before 9 p.m. EST Monday - Friday unless there is a shipping address error or stockout, we will contact you immediately at that time. We never ship during weekends or holidays. Besides we need a few hours to process you order and the shipment. When shipped, orders will take a few hours to update tracking. You will get a shipping confirmation once shipped.
      Youngsee Hair shipping method is DHL, FedEx or USPS. We will choose the appropriate way to express according to your region. The delivery time is 3-6 business days via Fedex and DHL, 10-15 business days via USPS.

      Free Shipping & Easy Return

      We will ship your order without charging extra shipping fee. We will ship your order on the SAME/NEXT working day of payment receipt. To process your order quickly and correctly, please provide us with your full right delivery address including postcode/zip code, county/province name. Please also remember to leave your contact number and email address.

      Your order will be DISPATCHED on the same working day, provided that the order is placed before 3.00 pm (Saturday, Sunday and Holidays are not classed as working days).

      All items are sent out with the chosen postal service on the next working day of payment receipt. Delivery is not possible on a Saturday, Sunday or Holiday. All prices include package and postage charges.

      If you have any urgent need please call us on +8613034571891/+8617862813017.

      After your order has shipped: The delivery address may not be changed. Some items are not available for special/next day delivery, they are specified in the products description.

      Return Policy


      We accept order cancellation before the product is shipped or produced. If the order is cancelled you will get a full refund. We cannot cancel the order if the product is already shipped out. We will help you with the return after you receive the hair.

      Returns (if applicable)

      We accept return on products. Customers have the right to apply for return within 60 days after the receipt. 
      To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. To complete your return, we require a receipt or proof of purchase. Please do not send your purchase back to the manufacturer. 
      Customers will only be charged once at most for shipping costs (this includes returns);  For all returns due to no fault of ours, a 5% re-stocking fee will apply and you will be responsible for the shipping cost. 

      ※Custom Lengths are final sale and are not eligible for returns or exchanges. We recommend ordering Swatches to see the colours in person if you are unsure about the colour before paying for a custom length.

      ※Clearance products are not returned or exchanged, because it is already a zero profit sale, please understand

      Refunds (if applicable)

      Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

      Late or missing refunds (if applicable)

      If you haven’t received a refund yet, first check your bank account again.
      Then contact your credit card company, it may take some time before your refund is officially posted. Next, contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at

      Please contact our Customer service at to get the returned address.


      There are some tips that you should know before placing an order, please refer to the picture below. If you have more questions, please click the picture to learn more.

      Notes Before Ordering

      younsee customer service

      get free hair and money refund