Introduction
For professional salons and distributors, navigating the differences between Genius Weft, Hand-tied Weft, Flat Weft, and Machine Weft is crucial for success. With so many options, making the right choice can be confusing.
As a leading Integrated Factory in China, Linwen Hair presents this Weft Hair Extensions Guide to deeply analyze the unique features, seam thickness, and technical specifications of every weft. We are here to help you select the best products for your salon business or wholesale needs.
1. Genius Weft: The New Industry Standard ⭐
(Best for: All hair types, especially clients who want a flat install but need durability)

Genius Weft is currently the best-selling product in the UK and European markets. It combines the benefits of Hand-tied and Machine wefts.
Technical Specs:
- Thickness: Ultra-thin (only 0.6mm – 0.8mm height).
- Cuttable: ✅ YES. It can be cut anywhere without shedding or unraveling.
- Return Hair (Beard): 🚫 NO. It has no short hairs at the top (“mustache”), preventing itchiness for sensitive scalps.
- Production: Machine-made but mimics the thinness of hand-tied.
- Lifespan: 12+ months with proper care.
2. Hand-tied Weft: The Luxury Invisible Choice
(Best for: Fine or thin hair where invisibility is the priority)

Hand-tied Wefts are 100% handcrafted by skilled workers. They are famous for being incredibly lightweight.
Technical Specs:
- Thickness: Extremely thin and flexible.
- Cuttable: ❌ NO. You cannot cut the weft track, or it will unravel. You must fold it to fit the row.
- Return Hair (Beard): ✅ YES. There is a small “mustache” at the top where the knots are tied.
- Production: Hand-knotted.
- Installation: Requires experienced stylists to handle (cannot be cut).
3. Flat Weft (Silk Weft / PU Weft): The Hybrid
(Best for: Clients who want volume without the bulk of machine wefts)

Flat Weft uses a double-stitched technology onto a piece of thin silk or PU material. It lays much flatter than a standard machine weft.
Technical Specs:
- Thickness: Thin (~1mm), lies flat against the head.
- Cuttable: ✅ YES. Can be cut to any width.
- Return Hair (Beard): 🚫 NO. The top is sealed, so there are no short return hairs irritating the scalp.
- Volume: Holds more hair density than Genius Wefts.
4. Machine Weft: The Volume King 👑
(Best for: Thick hair, budget-friendly options, and high volume)

The classic Machine Weft is the most durable and affordable option. It is sewn together by a triple-head sewing machine.
Technical Specs:
- Thickness: Thicker and bulkier at the root compared to others.
- Cuttable: ✅ YES. Very durable and can be cut.
- Return Hair (Beard): ✅ YES. Visible return hair at the top.
- Durability: Extremely strong, ideal for creating high-volume looks.
📊 Quick Comparison Table
Here is a side-by-side comparison to help you choose for your salon:
| Feature | Genius Weft | Hand-tied Weft | Flat Weft | Machine Weft |
| Thinness | Ultra Thin (⭐⭐⭐⭐⭐) | Super Thin (⭐⭐⭐⭐⭐) | Thin (⭐⭐⭐⭐) | Thick (⭐⭐) |
| Can be Cut? | ✅ Yes | ❌ No | ✅ Yes | ✅ Yes |
| Return Hair | 🚫 No Beard | ✅ Yes (Small) | 🚫 No Beard | ✅ Yes (Small) |
| Price Point | Premium | High | Medium/High | Affordable |
| Best For | Most Popular / All Types | Fine Hair / Invisible | Volume + Comfort | Thick Hair / Volume |
We hope this Weft Hair Extensions Guide helps you make the best choice for your salon business.
Why Source Wefts from Linwen Hair Factory?
As an Integrated Industry and Trade Enterprise, buying from Linwen ensures you get:
- Factory Direct Prices: No middleman markups on our premium Genius or Hand-tied wefts.
- Consistent Quality: We use 100% Human Hair with full cuticles aligned (Virgin/Remy/Non-Remy Hair).
- Customization (OEM): We can customize weights (e.g., 50g, 100g packs) and colors (Balayage, Ombre, Piano) for your brand.
Ready to upgrade your salon’s menu? Contact Us to request a free sample of our Genius Wefts or download our Wholesale Price List today!