Aurifil 2021 Color Builder Collection

The 2021 Aurifil Color Builders were created in part to herald and highlight the very first thread weight produced by Aurifil: 40wt. These mini-collections dedicated to an incredibly worthy cause that falls in line with our goal to increase Aurifil’s sustainability and positive environmental impact — Endangered Species. Each collection contains three large spools of our supple and strong 40wt thread — a warm, a medium, and a dark.