100 %cotton.

Please note the following recommended care instructions.

T-shirts should be washed inside out and set on a gentle machine cycle in cold water. 
When drying: Tumble dry on low heat. 
To avoid possible shrinkage: Lay flat to dry.
To maintain the life of the design, t-shirts should be ironed inside out on a low heat setting without the use of steam. This step also aids in refreshing the colors in the design.