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The heart of  MAST is Mellow, Sofie and Tasha. We make all of our own work by hand here in Tucson, in our individual studios.

We all strive towards creative interpretations within our own lines and organic execution in each piece.

MAST honors the belief that investing in your community and knowing where something comes from makes each piece more valuable.  We know that process is a an invaluable aspect of each design and piece.

This is why we reach out and engage our community for insight on what drives them and what they want to see out of us as a brand and as makers. 

We promise to always be pushing forward to offer you transparency to process, access to customization and commitment to quality...and, ultimately, creativity.





Mellow is a radical, a lover, a fiercely compassionate human, a designer and a ever evolving leather crafter.  She meticulously works to create leather goods that will make you happy and are the epitome of both form and function.  Mellow loves to move and groove, grappa, her family (and yours) and making a bold and beautiful statement in everything she does!   The M in MAST


Sofie is a timeless classic, an old world treasure living in modern times.  She is prolific in her creativity and brings beauty to everything she does.  She brings her incredible eye and vision to her craft and creates modern heirloom jewelry to last a lifetime.  Sofie loves making things beautiful,  Billie Holiday, her wild and wonderful children and a good pair of Gucci loafers.  The S in MAST


Tasha is a Tucson native, a rock n' roller  to her core, lover of animals, plants, art and sometimes humans.  She brings together her voice and vision with an architectural eye to manifest her darkly delicate jewelry.  Tasha loves a good dance party, her desert familia, great architecture, Tucson summers and tequila.  The T in MAST