A 4x4 lace closure wig is a popular choice among wig wearers because of the following reasons:

1. Natural-looking scalp: The 4x4 lace closure provides a realistic-looking scalp and allows for the hair to be parted in any direction, creating a more natural appearance.

2. Versatility: The 4x4 size of the closure is small enough to be used for various hairstyles, including updos and braids, but large enough to cover the crown of the head and provide ample styling options.

3. Improved comfort: The lace material used in the closure is lightweight and breathable, making the wig more comfortable to wear for extended periods of time.

4. Easy to install: The 4x4 size of the closure makes it easy to install and blend with the wearer's own hair, creating a seamless look.

Overall, a 4x4 lace closure wig offers a natural-looking scalp, versatility, improved comfort, and ease of installation, making it a popular choice among wig wearers.