How Many Bundles Do I Need for a Full Sew-In? Your Ultimate Guide

You have finally chosen your dream texture and the perfect length for your next install. You are on the Her Hair Company website, ready to checkout, but then you pause. A common question pops into your head: "Wait, how many bundles do I actually need?"

Buying too few bundles will leave your sew-in looking thin, stringy, and unnatural. Buying too many might mean you spent extra money on hair that won't even fit on your head.

The number of bundles you need depends entirely on the length of the hair, the texture, and the size of your head. To take the guesswork out of your shopping experience, here is the ultimate Her Hair Company bundle guide.

The Golden Rule: 3 Bundles is the Standard

If you are ever in doubt, the industry standard for a full, natural-looking sew-in is three bundles. This provides the perfect amount of volume for everyday, natural styles.

However, because hair is sold by weight (typically 100 grams per bundle), the longer the hair is, the shorter the weft will be. This means a 24-inch bundle has a much shorter track than a 12-inch bundle. Therefore, the longer you go, the more bundles you need!

1. The Short & Chic Bob (10" - 14")

If you are going for a sleek, shoulder-length blunt cut or an asymmetrical bob, you don't need a massive amount of hair.

• You Need: 2 to 3 Bundles.

• The Breakdown: Two bundles of our Brazilian Straight Hair are usually enough for a very natural, lightweight bob, especially if you are leaving your natural hair out at the top. If you want a thicker, "heavy" bob, grab a third bundle just to be safe.

2. The Everyday Mid-Length (16" - 20")

This is the most popular length category! Hair between 16 and 20 inches falls beautifully across the mid-back and chest.

• You Need: 3 Bundles.

• The Breakdown: Because the wefts are getting slightly shorter at this length, you absolutely need three bundles to ensure the ends of your hair look thick and full. Our 3 Bundle Deals are perfectly curated for this exact style.

3. The Glamorous & Long (22" - 30"+)

If you want head-turning, dramatic, waist-length (or longer) hair, three bundles will simply not be enough. The tracks will be stretched too thin across your head, resulting in a sparse look.

• You Need: 4 to 5 Bundles.

• The Breakdown: For lengths 22" to 26", four bundles are mandatory for a full look. If you are going 28" or longer, you might even want to squeeze in a fifth bundle for maximum Hollywood volume. Save money and secure your fullness by shopping our 4 Bundle Deals.

How Does Texture Affect Your Purchase?

Straight hair lays completely flat, meaning it takes more hair to create a voluminous look. If you are buying straight hair, always lean toward buying an extra bundle.

Curly hair, like our Brazilian Deep Curly Hair, naturally expands and creates massive volume. You can often get away with using fewer bundles (for example, 3 bundles for 24-inch curly hair might look just as full as 4 bundles of straight hair).

What If I Am Wearing a Frontal?

A 13x4 HD Lace Frontal covers your entire hairline from ear to ear. Because the frontal covers almost half of your head, you will have less space to sew in tracks. You can usually use about half a bundle less when wearing a frontal compared to a standard leave-out sew-in.

Build Your Perfect Cart

Now that you know exactly the formula for flawless volume, you can shop with confidence. Don't risk a thin install—invest in the right amount of high-quality virgin hair today with our perfectly matched Bundle Deals at Her Hair Company!