Bone straight natural color hair weave is 100% unprocessed human remy or raw Vietnamese hair with a super silky, ultra-flat, and pin-straight texture with thick ends. At K-Hair Factory, bundles are available in 10 to 32 inches in length, with a double-machine strong weft to eliminate shedding from the first install.
A full sew-in requires 3 to 4 bundles at 100g per bundle. For lengths over 20–22 inches, 4 bundles deliver salon-grade density from root to tip.
→ Not sure which bundle length to order? See our full guide: Hair Extension Length Chart
Bone Straight Hair Weave: What You’re Actually Buying
Not all straight hair weaves are built the same. Here is exactly what goes into every bundle K-Hair ships — from the donor source to the weft construction.
Construction Specs
While the market sources raw or virgin human hair from a mix of origins — Brazilian, Vietnamese, or Indian — K-Hair uses exclusively 100% Vietnamese single-donor hair. Vietnamese hair preserves intact cuticle alignment throughout the weft and grades consistently at DD to SDD draw quality, meaning uniform density from root to tip across the entire bundle, not just the top third.
| Spec | Detail |
|---|---|
| Length | 10 to 32 inches |
| Weight per bundle | 100g |
| Draw grade | DD / SDD (Double Drawn / Super Double Drawn) |
| Weft type | Double-machine strong weft, heat-sealed edges |
| Color | Natural Black |
| Safe lift | Up to Platinum Blonde #613 |
| Wholesale MOQ | Contact us — flexible for first orders |
→ Learn how draw grades affect bundle quality: DD vs SDD vs SD — What It Means for Your Order
Bone Straight Natural Color: Why It Outperforms Processed Hair
The Cuticle Advantage
Natural black hair weave in this texture retains its gloss without synthetic silicones because the cuticle layer has never been chemically processed. That intact, sealed cuticle is what delivers a frizz-free finish through humidity and daily heat styling — a result coated or treated hair cannot replicate.
The bone straight finish is achieved through high-temperature thermal processing at the factory — not a chemical treatment, so the natural color (unbleached, undyed) is fully preserved. Natural black hair processed this way holds a pin-straight profile through repeated washing because the cuticle alignment is set under heat, not altered by dye or bleach. This makes it the cleanest base for any colored install: ombre brown, ombre 613 blond, or full platinum sets.
Mrs. Cherry, Sales Manager at K-Hair Factory: “Natural black hair that has never been chemically processed retains its cuticle layer intact from root to tip. This is why it stays silky after repeated washing and lifts cleanly to #613 without banding. Every bone straight bundle passes a draw-grade quality check at the factory before wefting — a step most distributors skip entirely.”
Why Wholesale Buyers Source Direct from K-Hair
Market Comparison: Factory Direct vs Retail Pricing
Retail brands like UNice Hair Store, Ebonyline (Bobbi Boss Indiremi), and ONYC Hair Extensions run $33–$115 per bundle depending on brand and bundle count. K-Hair operates upstream as the direct manufacturer — wholesale buyers skip distributor margins and access the same raw cuticle grade at factory-direct pricing.
| Factor | Retail Brands | K-Hair Factory |
|---|---|---|
| Pricing per bundle | $33–$115 | Factory wholesale price |
| Minimum order | 1 bundle | Flexible — contact for details |
| Draw grade options | Standard only | SD / DD / SDD |
| Hair source | Mixed origin | 100% Vietnamese |
| Color lift | Limited | Safe to #613 |
| Customization | None | OEM / private label |
→ Learn more about sourcing direct from the source: Vietnamese Hair Factory — K-Hair

Ready to Source Premium Bone Straight Bundles?
Contact K-Hair Factory directly for B2B wholesale pricing, MOQ details, and fast shipping on natural color weaves.



















Stella Hughes –
I’ve used many brands before, but K-Hair truly stands out.
Carmen Butler –
I’ve tried many brands, but K-Hair is by far the best. The quality speaks for itself.