ECS is closed on weekends but Kristi from ECS should see your ‘chat’ question on Monday. OR you could leave an e-mail for them by going under the ‘Customer Care’ Title listed above, then tap on ‘contact us’ button where there is an e-mail form; there is a phone number 1-800-800-8517 to call on Monday as well. I’m one of the stitchers that saw your ‘chat’. :)

Other sites indicate it is cotton floss, but not a specific brand. Some of the other kits from Riolis uses Anchor brand for their cotton floss, so it might be the standard for their cotton floss in their kits.

Hi there

I had gone to several webs and all what I had seen that the floss is acrylic woolen for the kits. Have fun

According to ABC Stitch Therapy, it is cotton threads. 😊