Super comfy 100% California fleece cotton. This is a fitted product -- we suggest ordering one size larger than your normal sizing.
Model is wearing a small. See size chart below (note measurements are general and may not be exact).
S- Chest (30-32) Waist (28-30) / M- Chest (34-36) Waist (30-32) / L- Chest (38-40) Waist (32-33) / XL- Chest (42-44) Waist (33-34)