wearing directly on bare skin
Refers to wearing shoes, trousers, etc. without socks or underwear. Often used in contexts like 直履き禁止 (no wearing without socks).
These shoes get stuffy easily if you wear them without socks.
I don't like wearing jeans without underwear.
ノーパン is casual/slang for going without underpants; 直履き is a more neutral term for wearing trousers directly on the skin.
Standard kanji spelling using 履 (wear on lower body).
Mixed kana spelling; easier to read for learners.
Variant using 穿 (put on lower body); less common but still seen.
Abbreviated form without okurigana; mostly seen in compounds or older texts.
Compound of 直 (じか, direct) and 履き (はき, wearing on the lower body, from 履く). The spelling 直穿き uses 穿く (to put on lower-body clothing).