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0 oz/yd² (271 g/m²)
and the spill-proof lid and bite valve prevent leaks
The "Endless Pi" design blends mathematical knowledge with stylish practicality
low-profile
Einstein’s Portrait Cap Embroidery Color:Olive 0 oz/yd² (271 g/m²)The iconic and inspiring design, featuring a portrait of Albert Einstein, showcased on this premium product, pays tribute to one of the most brilliant minds in the history of science. Einstein's groundbreaking theories and contributions to physics, particularly the theory of relativity, have fundamentally changed our understanding of the universe. This design highlights your admiration for Albert Einstein and your passion for intellectual curiosity