To determine number of bundles needed for a full sew-in, consider the desired length and the degree of fullness. With “loose deep wave hair” for lengths of 10–16 inches, most customers usually need about 2 to 3 bundles. This usually gives a nice natural finish without being too heavy.
If you’re choosing longer lengths—say 18 inches and above—you’ll likely need 3 to 4 bundles. The longer the hair, the thinner the wefts tend to be from top to bottom, so adding an extra bundle helps maintain that full, voluminous look all the way through. Some people even go for 4 bundles if they love a really thick, glam style.
Texture also plays a role. Loose deep wave hair already has body and movement so that it can look fuller than straight textures with the same number of bundles. If you’re installing a closure or frontal, you might need one less bundle since those pieces help cover the top area.
In the end, it comes down to your personal style—natural and soft or big and full—but having that extra bundle on hand is never a bad idea.
If you’re choosing longer lengths—say 18 inches and above—you’ll likely need 3 to 4 bundles. The longer the hair, the thinner the wefts tend to be from top to bottom, so adding an extra bundle helps maintain that full, voluminous look all the way through. Some people even go for 4 bundles if they love a really thick, glam style.
Texture also plays a role. Loose deep wave hair already has body and movement so that it can look fuller than straight textures with the same number of bundles. If you’re installing a closure or frontal, you might need one less bundle since those pieces help cover the top area.
In the end, it comes down to your personal style—natural and soft or big and full—but having that extra bundle on hand is never a bad idea.