Why Raeven Hair Changed How We Weigh Our Bundles

Almost every supplier in this industry sells bundles at a flat 100 grams, no matter the length. It sounds fair on paper. In practice, it creates a problem that shows up the moment hair gets past shoulder length, and we decided it was time to actually fix it rather than work around it.

The Problem With a Flat 100 Gram Standard

The same 100 grams of hair has to cover more vertical distance the longer it gets. At 18 inches, that weight reads as full and dense. Stretch that identical weight to 24 or 26 inches, and the strands are spread thinner across a much greater length, which is exactly why longer wefts so often look shorter and sparser than shorter ones, even when the label says the same weight.

This isn't a flaw in the hair itself. It's a flaw in treating every length as if it needs the same amount of material to look equally full, when it doesn't. It's also the reason so many buyers end up ordering an extra bundle at longer lengths just to compensate, without ever being told that the shortfall was built into the weight standard from the start.

How We Redesigned Our Bundles

The New Weight Structure by Length

Instead of applying one weight across every length, we built a weight structure that scales with it:

• 18 to 20 inches: 100 grams

• 22 inches: 115 grams

• 24 to 26 inches: 130 grams

Each length gets exactly the additional weight it needs to maintain the same visual density from root to tip, rather than thinning out as the length increases.

Why These Specific Weights

The added grams at each length aren't arbitrary. They're calculated to offset the same stretching effect that makes a flat 100 gram bundle look thinner the longer it gets. A 26 inch Raeven bundle at 130 grams is built to carry the same fullness a 100 gram bundle carries at 18 inches, just distributed across more length. The goal was volume parity across every length we offer, not just a heavier price tag attached to longer hair.

What This Means for You: One Simple Formula

The real benefit isn't the weights themselves. It's what they remove from your decision.

Under the old flat weight system, bundle count had to shift depending on length, which is exactly the kind of calculation that leads to underordering, mismatched follow up purchases, and installs that run short halfway through. With volume built into the weight itself, the formula stays the same no matter which length you choose:

• Half head microlink or la weave install: 1 bundle

• Full head microlink or la weave install: 2 bundles

• Full sew in or hair weave: 3 bundles

Choose 18 inches or 26 inches, the bundle count doesn't change. You're no longer solving a different equation for every length on the menu.

Why This Matters More With Raw, Single Donor Hair

Getting bundle count right matters more with genuinely raw, single donor hair than it does with mass produced extensions. Because no two donors' hair is identical, a follow up order to cover a shortfall is much harder to match seamlessly than it would be with manufactured hair built to a repeatable spec. Building the correct volume into the bundle itself, rather than leaving it to guesswork at checkout, removes that risk before it ever becomes a problem, and it means the hair you install today will still match seamlessly if you need to reorder for a touch up months from now.

A Refresh Rooted in Function, Not Just Aesthetics

This change didn't come from a rebrand exercise. It came from time spent behind the chair, watching what actually happens when a flat 100 gram bundle is stretched past 20 inches on a real client. The gap between how a length looks on a hanger and how it performs during an install is where most bundle systems quietly fail people, and it's exactly the gap this refresh was built to close.

Frequently Asked Questions

Why did Raeven Hair change how bundles are weighed? A flat 100 gram standard across every length causes longer hair to look thinner, since the same weight is stretched across more length. Scaling the weight to the length fixes that instead of leaving customers to compensate with extra bundles.

Do I still need to calculate different bundle counts for different lengths? No. Because volume is now built into the weight of each bundle, the formula stays the same across every length we offer, from 18 to 26 inches.

Why do longer bundles weigh more at Raeven Hair? The added weight at each length offsets the natural thinning effect of stretching the same amount of hair over a greater distance, keeping fullness consistent from root to tip.

How many bundles do I need for a half head versus a full head install? A half head microlink or la weave install needs 1 bundle. A full head microlink or la weave install needs 2. A full sew in or hair weave needs 3, regardless of length.

Does this change affect the quality or sourcing of the hair itself? No. This is a change to how volume is calculated and weighed by length, not to how the hair is sourced. Every bundle is still genuinely raw, single donor hair.

Conclusion

A flat 100 gram standard was never actually solving for the same result at every length, it was just applying the same number and letting the customer deal with the consequences. Building weight around length instead of around a fixed default is a small change with an outsized effect: one formula, every length, no more guessing.

Explore the Raeven Hair Vietnamese Hair Collection

Explore the Raeven Hair Vietnamese Hair Collection and experience bundles built to hold their fullness at every length, from 18 inches to 26, with a formula that never changes.