Welcome to PlumpSip! I’m Al-Matti Atieh Mohammad, the founder, designer, and heart behind this dream.

For as long as I can remember, I’ve envisioned creating everyday gear that seamlessly blends personal expression with everyday utility. PlumpSip is the realization of that long-held dream. Though we are a young, independent brand based in the vibrant community of Seattle, Washington, every single stainless steel tumbler you see here carries a story that started right at my drawing board.

I personally design and hand-draw every concept for our tumblers, pouring passion, color, and intent into every outline. But a great design is only half the magic it needs to perform flawlessly in your hands. That’s why I partner with carefully vetted manufacturers who hold the same relentless standard for quality as I do. Together, we ensure every piece is built to keep your coffee piping hot during chilly morning commutes, your iced tea refreshingly crisp on sunny afternoons, and your ice solid for hours on end.