Measuring your head
You need one number: circumference. Run a soft tape measure around your head — starting at the front hairline, around above the ear, across the nape, above the other ear, back to the start. Keep the tape snug against the scalp with your own hair flat.
| Cap size | Circumference | Fits |
|---|---|---|
| Small | 20.5" – 21.5" | ~15% of wearers |
| Average | 21.5" – 22.5" | ~80% of wearers |
| Large | 22.5" – 23.5" | ~5% of wearers |
Every Jenluxhair cap is average with adjustable straps, giving a working range of roughly 21" to 23". If you measure outside that, contact us before ordering.
Length, and shrinkage
Length is measured with the hair pulled straight, from the top of the cap. A textured unit will wear shorter than its label — this is normal and physical, not mislabelling.
| Texture | Shrinkage | A 22" wears like |
|---|---|---|
| Straight | none | 22" |
| Body wave | ~1" | 21" |
| Loose deep wave | ~1.5" | 20.5" |
| Deep wave | ~2" | 20" |
| Water wave | ~2" | 20" |
| Kinky curly | ~4–5" | 17–18" |
Where lengths land on an average frame: 14" at the collarbone, 18" mid-chest, 22" below the bust, 26" at the waist, 28"+ past the waist.
Density
Density is how much hair is on the cap, expressed as a percentage of a full natural head.
| Density | Looks like | Use it for |
|---|---|---|
| 130% | Light, noticeably fine | Rarely worth it — looks sparse |
| 150% | Natural, everyday | Fine features, natural looks, short-to-mid lengths |
| 180% | Full — the default | Most buyers, most lengths. Start here |
| 200% | Maximum volume | Bobs, 26"+ lengths, all bleached and coloured units |
Three rules that save returns:
- Short means dense. A bob under 180% looks thin, because there is no length creating the illusion of volume.
- Long means dense. Past 24", lower densities thin out at the ends and the unit looks straggly.
- Bleached means dense. Lifted hair reads thinner than natural hair at identical density. 613 and highlight units should be 180% minimum.