Formed over 350 million years ago from fossilized prehistoric coral reefs, Michigan’s official state stone has been headbanging along Lake Michigan’s northern shores since the Devonian period.
Forget classic rock—these are the *original* heavy-hitters. This vintage-washed tee blends iconic rock-and-roll attitude with pure Great Lakes grit. Tough, timeless, and completely unpolished until wet. Slide it on and crank up the fossil fuels.
• 100% ring-spun cotton
• Sport Grey is 90% ring-spun cotton, 10% polyester
• Dark Heather & Heather colors are 65% polyester, 35% cotton
• Graphite Heather is 50% polyester, 50% cotton
• 4.5 oz/yd² (153 g/m²)
• Shoulder-to-shoulder taping
• Quarter-turned to avoid crease down the center
