Canary all-natural indigo thread is 100% organic cotton.
Different shades come from varying the vat, number of dips, and other modifications like overdyeing or mordants.
The thread is a sturdy weight that can be used for machine or hand sewing. It’s not as heavy as Gutermann topstitch, or chunky like sashiko embroidery thread. Each shade is individually listed in the drop-down menu under”indigo dyed thread” on the sidebar.