Engineers and Constants Stainless Steel Water Bottle

This stainless steel water bottle blends a little workshop wit to everyday routines. All the amazing constants they learned to love in college are here in bold black typography - like cheat sheet. Engineers take pride in this uncommon knowledge, and it makes this bottle a conversation piece for curious observers. Its double-wall construction keeps coffee warm for up to 12 hours and chilled water cold for up to 24 hours, while the matte, grainy finish shows crisp, vibrant prints that won’t fade. The secure twist-on polypropylene lid is BPA-free and Intertek certified, so you can sip with confidence. Available in three sizes, it’s built in South Korea to RoHS and Intertek standards — a reliable, no-nonsense companion for long commutes, late-night study sessions, or fieldwork when you need accurate hydration at hand.

Product features

- Double-wall stainless steel keeps drinks hot up to 12 hours and cold up to 24 hours

- BPA-free materials; Intertek and RoHS certified

- Matte, grainy finish with bright, crisp printed colors

- Twist-on polypropylene lid for secure, leak-resistant drinking

- Available in 12oz, 18oz, and 32oz sizes; made in South Korea

Care instructions

- Hand wash only