Client Measurements, Fitting, and Cap Construction Adjustment
Client Measurements, Fitting, and Cap Construction Adjustment
This domain tests accurate measurement and cap adjustment so the unit stays comfortable, secure, and natural.
Core rules
- Measure the head with hair as it will be worn under the unit; flatten bulky hair or measure both ways if the client will change styling.
- Key measurements: circumference (hairline at front, above ears, around nape); front-to-nape (front hairline over crown to nape); ear-to-ear over the crown; temple-to-temple across the forehead; nape width.
- Sizes are not standardized across brands: petite, average, and large vary. Compare the client's numbers to the specific brand chart.
- Adjust with straps, Velcro, elastic, or sewing-not by cutting the lace blindly. Trim lace gradually, in small amounts, with the unit on and the hairline mapped.
- Check pressure points: temples, ears, occipital bone, nape. A cap that leaves red marks or headaches is too tight, not "secure."
- Ear tabs should sit level and cover the side hairline; the nape should not ride up when the client bends.
Worked example
Circumference is 22.5 in (average), but front-to-nape is 15 in, longer than the brand's average. Reasoning: the circumference alone would lead to an average cap that pulls at the nape. Choose an adjustable average or a large, then take up the extra length with the nape adjustment; confirm ear tabs and hairline before cutting lace.
Traps
Measuring over a thick ponytail; choosing size by circumference only; over-tightening to prevent slippage; cutting lace before fitting; ignoring asymmetry or a low occipital bone.