This Odo and Kira icon contains
business suit.
There might also be
dress suit, full dress, tailcoat, buntot amerikana, tails, puting itali, puti itali at tails, suit, suit ng mga damit, and panghukbong tagausig.
I'm not a huge Odo x Kira tagahanga (probably because I'm not that big of a Kira fan), but I do think it's cute and had good storytelling. Here's a sweet video documenting the different stages of their relationship, done to a pag-ibig theme from Titanic.