| 2 / | HD | APPAREL |
| 171 | DF | HEAD COVERINGS {24} |
| 181 | DF | .~ With sweats or other supplementary head engaging member {5} |
| 181.2 | ![]() | .~.~ Discontinuous contact {3} |
| 181.4 | DF | .~.~.~> Removable or retractable |
| 181.6 | DF | .~.~.~> With perforated or slotted sweat or head engaging member |
| 181.8 | DF | .~.~.~> Transversely grooved head engaging member |