The Online Bra Brand Betting Its First Store on Walnut Street

By Julia Naftulin

Bras line the walls of Underoutfit's new Rittenhouse Row boutique at 1611 Walnut Street, which opened in November 2025. The store is the brand's first physical location after years of online-only sales. (Julia Naftulin / Fitler Focus)

The retail space at 1611 Walnut Street has become something of a proving ground for direct-to-consumer b…