I HEART Lactic Acid T-shirt

You know what lactic acid does. That's not stopping you.

C₃H₆O₃ is the molecule responsible for the burn — the thing most people feel and immediately slow down to avoid. You've spent months training your lactate threshold specifically so you can sustain the burn for longer. That's not suffering. That's science. And it's kind of beautiful.

This fitted tee wears your relationship with lactic acid like a badge of honor. Or a warning label. Probably both.

• Fitted cut
• Soft, comfortable fabric
• Bold I ♥ Lactic Acid molecular structure graphic
• Available in multiple colors and sizes
• For the runner who has made peace with the burn — and asked it to move in