50/50 cotton/polyester blend-soft and thin! The tag is marked medium but please check the measurements to ensure a proper fit. The actual measurements when laid flat are:
Pit to pit: 18.25 inches
Top of collar to bottom hem in back: 24.25 inches
Excellent condition! There is minor pilling and minor fade to the material and a little cracking to the screen print. No holes, stains, or rips.