What Are Weft Hair Extensions?
Weft Hair Extensions are bundles of human hair sewn or bonded together into a continuous track, creating a versatile solution for adding length, volume, and fullness. They are among the most popular professional hair extension methods used by salons worldwide due to their durability, natural appearance, and flexible installation options.
Unlike individual strand extensions, weft extensions allow larger sections of hair to be installed at once, making them ideal for clients seeking fuller results with efficient application. Depending on the installation method, wefts can be applied using sew-in techniques, micro rings, beads, or other professional systems.
At Unihairvn, all weft hair extensions are crafted from 100% Vietnamese human hair, known for its natural softness, strength, and long-lasting performance. Each bundle is carefully processed to maintain consistent texture, smooth cuticles, and a natural appearance that blends seamlessly with the wearer’s own hair.
Why Customers Choose Weft Hair Extensions
Weft hair extensions remain one of the most trusted solutions for salons and professional stylists because they offer excellent coverage, versatility, and long-term wear.
Fuller Volume and Length
Weft extensions provide significant volume and length enhancement while maintaining a natural appearance. They are ideal for clients who want a complete hair transformation.
Long-Lasting Results
When professionally installed and properly maintained, weft extensions can remain beautiful for several months while retaining softness and durability.
Versatile Installation Methods
Wefts can be installed using sew-in, beaded, braidless, micro ring, or hybrid methods, allowing stylists to customize the installation based on each client’s needs.
Natural Blending
Premium Vietnamese human hair blends naturally with a wide range of hair textures, creating a seamless and undetectable finish.
Reusable and Cost-Effective
With proper maintenance, high-quality weft extensions can be reinstalled multiple times, making them a practical long-term investment.
Things to Consider Before Choosing Weft Hair Extensions
While weft extensions offer many advantages, there are a few factors to consider:
Professional Installation Recommended
Most weft installation methods require a trained stylist to ensure proper placement and comfort.
Regular Maintenance Required
Move-up appointments are typically recommended every 6–10 weeks depending on the installation method.
Choosing the Right Weft Type Matters
Different weft constructions offer different benefits. Selecting the right option helps achieve the best results for each hair type and lifestyle.
Who Are Weft Hair Extensions Suitable For?
Weft hair extensions are ideal for:
- Hair salons and professional stylists
- Clients seeking maximum volume and length
- People with medium to thick hair
- Brides and special event clients
- Beauty professionals and content creators
- Hair brands, distributors, and wholesalers
Types of Weft Hair Extensions Available at Unihairvn
Machine Weft Hair Extensions
Machine Weft is a classic and trusted hair extension solution known for its strength, durability, and full-bodied appearance. Constructed with reinforced machine stitching, it offers excellent longevity while maintaining soft, natural-looking hair from root to tip.
Key Benefits:
- Strong and durable construction for long-term wear.
- Available in Single Weft and Double Weft options.
- Thick, full density for maximum volume.
- Ideal for wigs, custom bundles, and professional installations.
- Minimal shedding with proper maintenance.
- Cost-effective solution for volume and length enhancement.
- Suitable for a wide range of hair extension applications.
Made from 100% Vietnamese human hair, Machine Weft remains one of the most reliable and widely used extension products worldwide.
Flat Weft Hair Extensions
Flat Weft combines the lightweight flexibility of hand-tied wefts with the durability and strength of machine wefts. Its slim, flat construction lies comfortably against the scalp, creating a seamless and natural-looking result without bulk.
Key Benefits:
- Thin and flat design for a discreet installation.
- Strong and durable construction with minimal shedding.
- Thick from top to end for maximum fullness.
- Soft, flexible, and comfortable for everyday wear.
- Can be customized and cut to fit individual needs.
- Blends naturally with all hair types.
- Ideal for adding both volume and length with a flawless finish.
Genius Weft Hair Extensions
Genius Weft is one of the thinnest and most discreet weft extensions available today. Engineered to deliver the perfect balance of comfort, flexibility, and durability, it provides a seamless blend while maintaining exceptional strength.
Key Benefits:
- Ultra-thin weft for maximum invisibility.
- Can be cut freely without unraveling or shedding.
- Lightweight and comfortable for long-term wear.
- Flexible construction lays flat against the scalp.
- Fast and easy installation for professional stylists.
- Provides natural volume and length with a flawless finish.
- Suitable for a wide range of hair types, including fine hair.
Designed for clients who want a virtually undetectable extension with premium comfort and natural movement.
Double Genius Weft Hair Extensions
Double Genius Weft is an advanced extension solution that combines the ultra-thin profile of Genius Weft with enhanced density for fuller results. Constructed by fusing two Genius Wefts into one seamless track, it delivers exceptional volume while maintaining a flat, lightweight, and comfortable fit.
Key Benefits:
- Double-layer construction for increased density and fullness.
- Ultra-flat design that lies seamlessly against the scalp.
- More volume with fewer weft tracks required.
- Lightweight and comfortable despite higher density.
- Faster installation and reduced application time.
- Natural movement and flawless blending.
- Ideal for clients seeking maximum volume without added bulk.
D’Amelio Weft Hair Extensions
D’Amelio Weft is a revolutionary hair extension that combines the invisible scalp effect of Injection Tape with the durability and versatility of a Flat Silk Weft. The ultra-thin PU base mimics natural hair growth from the scalp, creating a seamless and undetectable finish.
Key Benefits:
- Natural scalp-like appearance for maximum invisibility.
- Lightweight and comfortable for all-day wear.
- Ultra-thin PU technology lies flat against the head.
- Flexible installation methods to suit different client needs.
- Easy to wear while minimizing tension on natural hair.
- Smooth, natural movement and effortless blending.
- Ideal for clients seeking a premium, realistic extension solution.
D’Amelio Weft delivers the perfect balance of comfort, discretion, and beauty—offering one of the most natural-looking hair extension experiences available today.
Jisoo Feather Weft Hair Extensions
Jisoo Feather Weft is our ultra-lightweight weft designed for maximum comfort and natural movement. Featuring an exceptionally thin and flexible construction, it lies completely flat against the scalp for a seamless, low-profile finish.
Key Benefits:
- Ultra-light and airy for all-day comfort.
- 140–180 pcs per 100g, creating fuller coverage with a lightweight feel.
- Thin and flexible weft adapts naturally to the head shape.
- Lays flat against the scalp for a discreet, invisible appearance.
- Blends effortlessly with natural hair for soft movement.
- Ideal for clients with fine hair or those seeking volume without bulk.
A perfect choice for achieving natural fullness while maintaining a lightweight, comfortable wear experience.
Hand-Tied Weft Hair Extensions
Hand-Tied Weft is a premium extension method crafted by hand to create an ultra-thin and lightweight weft. Designed for maximum comfort and natural movement, it lies flat against the scalp and blends seamlessly with natural hair.
Key Benefits:
- Ultra-thin and lightweight construction.
- Virtually invisible installation.
- Natural movement and soft texture.
- Comfortable for long-term wear.
- Ideal for fine and thin hair types.
- Creates a seamless, natural-looking finish.
- Less bulk compared to traditional machine wefts.
Made from 100% Vietnamese human hair, Hand-Tied Weft offers a luxurious, lightweight solution for clients seeking the most natural extension experience possible.
Weft Extension Comparison: Which Type Fits Which Client?
The ideal weft construction depends on the client’s hair density, desired level of volume, installation method, and preferred comfort. UniHair offers six professional weft options, each designed to meet different salon services and customer needs while maintaining a natural-looking result.
| Weft Type | Thickness & Visibility | Weft Width | Weft Line | Pack Contents | Installation Methods | Best For |
|---|---|---|---|---|---|---|
| Machine Weft | Thickest and strongest construction, more visible at the scalp | 1.0–2.5m depending on length and single/double weft option | ~5mm | 100g / 1 strip | Sew-In, Micro Bead, Clip-In Conversion, Wig Making | Medium to thick hair, maximum volume, durability, wigs and custom bundles |
| Hand-Tied Weft | Ultra-thin, lightweight, virtually invisible | 28cm (11″) per strip | 1–1.5mm | 100g / 5–7 strips | Sew-In with Beads | Fine to medium hair, natural movement, lightweight wear, luxury installations |
| Genius Weft | Ultra-thin, flexible, nearly invisible | < 20” length: 90-95cm/50g > 20” length:75-80cm/50g | 2mm | 3mm | 5mm | 100g / 2 strips (50g each) | Sew-In, Beaded Weft | Fine to medium hair, seamless blending, clients seeking invisible results |
| Double Genius Weft | Ultra-flat with double density, fuller volume while maintaining low visibility | 20–28cm, depending on weight (50g–100g) | 2–3mm | 50g or 100g | Sew-In, Beaded Weft | Clients wanting maximum fullness with fewer rows, premium salon installations |
| Flat Weft | Flat, durable, and discreet with excellent scalp comfort | 80cm | 3–4mm Flat | 100g / 2 strips (50g each) | Sew-In, Micro Bead | Clients wanting a balance of durability, fullness, and a flat finish |
| D’Amelio Weft | Lightweight, scalp-like appearance, low visibility | 20cm for 50g / 28cm for 100g | 2–3mm | 100g / 1–2 strips | Sew-In, Beaded Weft, Bead + Stitch | Fine to medium hair, clients seeking natural scalp effect, comfort, and volume |
| Jisoo Feather Weft | Extremely lightweight, ultra-discreet weft line | 20–30 cm | 1–2mm | 100g (140–180 pcs) | Sew-In, Beaded Weft | Fine, fragile, low-density hair requiring minimal tension and lightweight wear |
How to Choose the Right Weft Hair Extensions
Consider Hair Density
Choose a weft type that suits the client’s natural hair density. Lightweight options work best for fine hair, while thicker wefts provide maximum volume for medium to thick hair.
Select the Appropriate Weft Type
Different weft constructions offer varying levels of thickness, flexibility, and visibility. Choosing the right option helps achieve optimal comfort and natural blending.
Match Texture and Color
Select a texture and color that closely match the natural hair for the most seamless result.
Consider the Installation Method
Choose a weft that is compatible with the preferred installation technique and styling goals. This version phù hợp hơn với format các landing page bạn đang tối ưu.
How to Install Weft Hair Extensions
Step 1: Prepare the Hair
Wash, dry, and section the natural hair according to the chosen installation method.
Step 2: Create the Foundation
Create beads, braids, or support sections depending on the installation technique.
Step 3: Position the Weft
Place the weft securely along the prepared section.
Step 4: Secure the Installation
Attach the weft using sewing thread, beads, or the selected professional method.
Step 5: Continue the Application
Repeat the process until the desired volume and coverage are achieved.
Step 6: Blend and Style
Trim and style the hair for a seamless, natural-looking result.
Weft Hair Extensions Care Guide
Gentle Washing
Use sulfate-free shampoo and conditioner to maintain softness and prolong lifespan.
Careful Brushing
Brush daily with an extension-safe brush, starting from the ends and working upward.
Protect From Heat
Apply heat protectant before styling and avoid excessive heat exposure.
Maintain Installation
Schedule regular maintenance appointments to keep the wefts secure and comfortable.
Proper Storage
Store removed extensions clean, dry, and protected from direct sunlight.
Wholesale Weft Hair Extensions Pricing and Custom Options
Unihairvn offers flexible wholesale solutions for salons, distributors, and hair brands worldwide.
We provide:
- Low minimum order quantities
- Factory-direct wholesale pricing
- Bulk-order discounts
- Custom lengths, colors, and textures
- Custom weft constructions and specifications
- OEM & ODM manufacturing
- Private label services
- Custom packaging solutions
- Worldwide shipping
Contact our team today for a customized quotation and wholesale consultation.










