Sage Mountainflower is the owner and designer of the Indigenous fashion brand Sage Mountainflower. The Sage Mountainflower House of Fashion is located on Po'Pay Avenue in Ohkay Owingeh, NM. She integrates her beadwork techniques and Pueblo styles into modern, contemporary couture fashion to be worn outside traditional boundaries.

Sage is from the Pueblo communities in Northern New Mexico—Ohkay Owingeh and Taos Pueblo—as well as the Navajo Nation. She began this endeavor by creating traditional and contemporary attire for her children. As a young girl, she learned beadwork by observing her mother and aunties. She grew up immersed in the arts, with her parents' influence in beadwork, painting, sketching, writing, and making music.

After being gifted a sewing machine, Sage began making traditional clothing for her children over 25 years ago. She entered the Native fashion world as a designer during the Santa Fe Indian Market Southwestern Association of Indian Arts (SWAIA) Native Contemporary Clothing Contest in 2014. Since then, her work has been exhibited in various art and fashion shows throughout Indian Country and internationally. She has showcased her designs at Fashion Weeks in New York, Paris, France, and Milan, Italy, as well as at the inaugural SWAIA Fashion Week.

Sage Mountainflower’s designs have received numerous awards and recognition at the Heard Indian Fair & Market in Phoenix, Arizona, and the Santa Fe Indian Market SWAIA in Santa Fe, New Mexico. One of her archival pieces, "It's Phendi," is held at the Peabody Essex Museum in Salem, Massachusetts, and two of her designs were featured in the Native Fashion Exhibit at the Spencer Museum of Art at the University of Kansas this Fall. She has also been featured in various magazines, such as Native Max Magazine and VOGUE.

Sage will be a featured artist in an upcoming exhibit at the Indian Pueblo Cultural Center in Albuquerque, NM, starting March 15.