Equations That Changed the World Graphic Tee Material_Titanium Alloy this big 32 oz Birds

this big 32 oz Birds Steel Bottle will have your drink at just the right temperature whenever you're ready for it

The mesmerizing dance of flies getting snared and spiders collecting their evening meal plays out in the space between shadow and light

and the outside threading is BPA-free plastic that glides onto the bottle smoothly and quietly

Use it to sketch the development of tadpoles or to keep track of all the different frog calls you hear

Equations That Changed the World Graphic Tee Material_Titanium Alloy this big 32 oz BirdsWear this super soft graphic tee to spark conversations about your latest mathematical research or your latest proof. It'll look smart at your next lecture, in the library, or under a blazer.