Sister Sumac is a Pacific Northwest-based textile design studio creating prints exclusively with sustainably harvested natural colorants. Co-founded by Gwen and Chelsea - both with approximately a decade of prior professional experience in the footwear and apparel industries - the studio combines age-old natural dyeing techniques with professional digital production capability.






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Sister Sumac is a Pacific Northwest-based textile design studio creating prints exclusively with sustainably harvested natural colorants. Co-founded by Gwen and Chelsea - both with approximately a decade of prior professional experience in the footwear and apparel industries - the studio combines age-old natural dyeing techniques with professional digital production capability.
Selected pattern images (all six checked as patterns) suggest all-over surface prints developed through natural dye processes and handmade mark-making. The visual language is shaped by material properties of natural colorants rather than conventional digital print design, giving the work a distinct hand and authenticity.













Sister Sumac is a Pacific Northwest-based textile design studio creating prints exclusively with sustainably harvested natural colorants.
Pattern Focus Selected pattern images (all six checked as patterns) suggest all-over surface prints developed through natural dye processes and handmade mark-making.
Chelsea Erhart works across womenswear.
Use the contact links on this profile to reach Chelsea Erhart directly about your brief, timeline and budget.
Chelsea Erhart is a Textile Design Studio. Browse their portfolio and contact them for projects.
Chelsea Erhart specialises in colour theory, trend awareness, and market adaptation.