I'm so hot I have my own Firefighter tee is printed on a the smoothest and softest t-shirt you'll ever wear. Made of fine jersey, it has a durable, vintage feel. Perfect Valentine's Day gift. These classic-cut shirts are known for their premium quality, as well as ability to stand up to a washing machine (will maintain size and color after many washes). The shirts are 100% fine jersey cotton, except for the heather grey color (90% cotton, 10% polyester). This women's t-shirt is made form-fitting to flatter a woman's curves.