100% acrylic
Grey Camo & Green Camo are 95/5 acrylic/elastane
Heather Grey is 62/38 acrylic/polyester
All other Heather colors are 50/50 acrylic/polyester
Adjustable cuff, shown as 3" 
Kelly beanie comes with white shamrock, Heather kelly beanie comes with harp. 
This product meets the following Sustainable Style subcategory:
 
Socially Conscious Manufacturing: This product was made in a facility that utilizes the Higg Index and has implemented Level 2 practices or above and was made in a facility that is WRAP certified.