For anyone wanting to sew rugged, menswear-inspired garments.

Thread Theory Designs is an online sewing pattern and supply shop based on Vancouver Island, B.C. We ship worldwide and our Thread Theory pattern line can be found in hundreds of haberdasheries internationally. We want to help you acheive your menswear and menswear-inspired sewing goals!

Our Mission

We began Thread Theory in 2012 with a mission to bring menswear sewing patterns to the forefront of the DIY fashion movement. To continue to meet the sewing community's needs we have since expanded our pattern range to include menswear inspired women's sewing patterns and androgynous workwear sewing patterns.
Along with our extensive Thread Theory pattern line, you will also find a comprehensive catalogue of menswear and workwear patterns from other pattern designers as well as a curated selection of rugged notions and tools in our shop.


Meet the Team


The co-founder and leader of our little pattern company. Morgan has a background in fashion design and a passion for practical clothing and simple living. She designs our pattern line, is the person you'll chat with when you contact us, and curates our shop.


The co-founder of our company, Morgan's husband Matt, is responsible for our website development and technical troubleshooting.


Our talented pattern development manager. She creates our detailed instruction booklets and accurate illustrations. She orchestrates communications between the rest of the pattern development team. In addition to this, Adrianna shares her passion for and expertise in sewing on our social media platforms.


The graphic designer who really 'gets' what makes a user-friendly sewing pattern! Our sturdy pattern envelopes and clear instruction booklet layouts keep sewing enjoyable.


The accurate and detail oriented pattern maker who operates Symmetry Patterns out of Vancouver, B.C. Her passion for a great fit and accurate grading forms the basis of our quality patterns.



Use #makemenswear

Reference our tutorials

Join our pattern sew-alongs

And say hi to us by email!