Deep wave is the texture people fall for in photographs and then have to learn to live with. It is genuinely beautiful hair. It also shrinks more than you expect, tangles at the nape faster than anything else, and takes real work to keep looking the way it did on arrival.
What deep wave actually is
A deep, uniform S-shaped wave that runs the full length of the strand — tighter and more defined than body wave, looser than a curl. It is a set pattern, not a loose movement, which is why it holds its shape through a day but needs re-forming after a wash.
The family in order, loosest to tightest: body wave, loose deep wave, deep wave, water wave, curly. Water wave is deep wave with a slightly irregular, less uniform pattern — it looks more natural and is marginally easier to maintain. The texture guide compares all of them.
Shrinkage: the thing to understand before you buy
Deep wave loses 20–25% of its stated length to the pattern. A 20 inch unit wears like 15 or 16.
| You order | It wears like | Where it sits |
|---|---|---|
| 16" | 12–13" | Chin to collarbone |
| 20" | 15–16" | Collarbone |
| 24" | 18–19" | Mid-chest |
| 26" | 20" | Below the bust |
The practical rule: add four inches to the length you actually want. The shrinkage chart covers every texture and how to do the conversion properly.
Why deep wave suits some people and not others
It suits you if you want volume without density, you like hair that looks like it has been done, and you are happy to spend five minutes on it after a wash. The pattern creates its own body, so a 180% deep wave reads fuller than a 180% straight unit.
It does not suit you if you want to be out of the door in two minutes, you wear high collars and scarves daily, or you want to straighten it regularly. Straightening a deep wave repeatedly is how the pattern dies — once it stops reverting after a wash, it does not come back.
The nape problem
This is the one thing to know. The hair at the nape of a deep wave unit is the shortest, it moves most, and it sits against a collar all day. Within weeks of careless wear it mats into a felt that no amount of conditioner undoes.
Three habits prevent it entirely: lift the length off wool coats and high necks, plait it loosely at night under a satin bonnet, and finger-detangle the nape specifically at the end of each day. Why your wig keeps tangling explains the mechanism and the detangling guide covers the method.
Washing and reviving the pattern
Deep wave is washed less often than straight hair, not more — every eight to ten wears. The routine that matters:
- Detangle before the wash, never after. A tangled deep wave unit in water becomes a matted one.
- Shampoo downward in the direction the hair grows. Never scrub in circles.
- Condition the lengths heavily, keep product off the cap.
- Scrunch, do not comb, while damp. A comb through wet deep wave pulls the pattern straight.
- Air dry on a stand, or diffuse on low. A towel-scrunched unit dries frizzy.
- A leave-in or curl cream while damp is what brings the definition back.
The full washing guide has the order, and our care page covers the longer routine.
Density for deep wave
Because the pattern adds volume, deep wave is one of the few textures where 150% is genuinely wearable. That said, past 20 inches the weight of the length starts pulling the wave out at the bottom, so 180% is the better choice for anything long. The density guide explains what each level looks like.
Where to start
Sienna is our loose deep wave unit — 13x4 HD lace, 18 to 26 inches. The looser pattern is the easier one to live with and the one we would point a first-time deep wave buyer at.
Zuri is the glueless wear-and-go version if you want the texture without the install, and Amara is the water wave alternative — same family, slightly less uniform, slightly more forgiving. The curly and wavy collection has the full range, and which wig should I buy works through density and cap type once you have chosen a texture.