chic and cheerful

Translations
стильный и жизнерадостный
She wore a chic and cheerful outfit to the party.
Она надела стильный и жизнерадостный наряд на вечеринку.
Definitions
A phrase describing a style or demeanor that is both fashionable and lively, often characterized by a sense of elegance combined with a joyful or upbeat attitude.