The collaboration centers on elevating the brand's signature phone-first system through premium materials and functional upgrades. Stewart’s influence is evident in the choice of snake-embossed leather, gold hardware, and a redesigned wallet that addresses her personal requirement for increased card storage. Each piece aims to balance luxury with the practical demands of daily life.

Central to the release is the Martha Estate Tote, a design inspired by traditional gardening gear. Constructed from heavyweight cotton canvas and accented with leather, the bag integrates a dedicated exterior phone pocket and multi-compartment interior to streamline organization. Complementing these are modular accessories, including AirPods pouches and specialized shoulder straps, designed to attach seamlessly to the existing Bandolier ecosystem. According to co-founder Maggie Drake, the partnership was born from Stewart’s long-standing use of the products, ensuring the final designs reflect authentic user needs. The collection, which retails between $48 and $380, is available exclusively through the brand’s website.