In 2014, Barbie earned the Master Sewing and Design Professional certification from ASDP. The certification is a multi-year process in which candidates are evaluated in seven areas of sewing, design, and business.

Barbie teaches intermediate through advanced students. She works almost exclusively with the Moulage. Barbie teaches many couture-level classes, including French designer jackets, tailored jackets, trouser fitting/construction, sloper-drafting, and corsets!

Schedule a private lesson with Barbie or send her an e-mail.

Coming soon

fitting, with Sandra Ericson to learn Madeleine Vionnet methods, as well as design techniques, and with Susan Khalje to further enhance her couture clothing construction knowledge. She even attended Susan’s “Couture Tour” of Paris, where she spent time in the city learning pattern draping and couture embroidery techniques.

Coming soon

Coming soon

In 2010, Erin joined the Association of Design and Sewing Professionals and began participating in the organization's annual educational conference where she continues to expand her sewing and design skill set, improve her teaching techniques and share her work. 

Being an engaged business owner and asset to her community is central to Erin's plans. She is pursuing the Executive MBA degree at BSU starting in fall of 2016, and was one of the Idaho Business Review's honorees for the Accomplished Under 40 Award in 2016 (see page 31).

Erin teaches beginning through intermediate-plus students, including teens and pre-teens. Although she only speaks English herself, she is comfortable teaching those whose primary language it isn't. Erin is sewBoise's resident knit and serger expert. She works extensively with the Moulage as well as with commercial patterns, and is always up for a rework of a pattern or existing garment.

Read more about Erin in the press, schedule a private lesson with her, or send her an e-mail.

Marianna Edwards   
Beginning-Level Instructor - Alterationist

Marianna has been teaching high school level art since 2007. Prior to teaching in the public schools she taught drawing and painting to children and adults at private art institutions in South Florida and San Francisco. Like many sewers, her grandmother gave her scraps of fabric to make doll clothes, but she did not own a machine of her own until about 2010. Sewing has become an additional creative passion for Marianna and she enjoys teaching her passions to others.

Marianna teaches beginning through intermediate students, including children over 7, pre-teens, teens and adults. She instructs beginner group classes and often oversees the Tuesday Evening Assisted Sewing Lab. She works with commercial patterns as well as with the Moulage. She also speaks and reads Spanish. 

Schedule a lesson with Marianna

Private Lessons Available! Click the button to see the schedule and reserve a time

Shop Assistant (Customer Service, Administrative, Sewing & Classroom Helper)


Erin Retelle        
Owner, Custom Sewing, Alterations, Intermediate-Level Instructor

Erin has been sewing more or less all her life. She began designing and sewing clothing for her dolls as a child, and then moved on to full-sized fashions after learning to use a sewing machine. She’s been her friends’ go-to gal for custom costumes and outfits, mending and alterations for more than a decade. 

After moving to Boise in 2004, she picked up some more advanced design and construction techniques from local instructors and fell into helping design and build costumes for the ballroom dance community she is a part of. She and partner Frank launched Oversway Originals, a custom ballroom dance costume company, a precursor to sewBoise.

Erin comes from a family of educators, and is no exception, many have described her as an exceptional teacher.
She thoroughly enjoys teaching, learning and sharing sewing tricks with others.

Coming soon

group classes,

private lessons,

weekend workshops

and open labs

Custom Sewing & Alterations 


Barbie McCormick       
Custom Sewing, Alterations Chief, Couture-Level Instructor

Barbie started sewing her freshman year in high school, and found she had inherited a knack for dressmaking from her mother and grandmother. After sewing for herself, her family and her friends for several years, she started a job doing alterations on an army post, then on to doing alterations for Macy’s in California.

Barbie moved to Idaho and officially opened her business, aptly named 
“Sew Good” in 1994. While she does all sorts of sewing, Barbie specializes in formal, bridal, and couture clothing.

A member of the
Association of Sewing and Design Professionals (ASDP) since 1996, she attends yearly educational sewing conferences to learn varied and new techniques in her field. She takes classes whenever she can to further her sewing abilities; she studied with Kenneth King to learn European pattern drafting and

Beginning-Level Instructor, Alterations, Custom Sewing 

Mon. Wed. Thurs. 10am-5:30pm, Tues. noon-7:30, Fri. 9am-1:00pm   (208) 685-9410