Answer: Underwear and underwear belong to the 25th category of registered trademarks. What kind of trademark does underwear and underwear belong to? The 25th category of clothing, among which similar groups are 2501: women's vests 250022, underwear (clothing) 250023, Underwear 250023, corset (women's underwear) 250025, underwear 250026, nightgown 250033, dressing gown 250033, women's sleeveless bra 250044, bodysuit 250051, rompers (clothes) 250053, sweat-absorbent underwear 250054, anti-sweat Underwear 250054, anti-sweat shirt 250054, bra 250055, corset (underwear) 250078, vest (vest) 250082, tight underwear (clothing) 250089, vest 250094, beach clothes 250104, pajamas pants 250108, pajamas 250108, underwear 250112, bras 250114, bathrobes 250127, petticoats 250144, women's long underwear with shoulder straps (underwear) 250146, women's rompers (underwear) 250147.