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Popular questions from our customers
What materials are your tumblers made of?
All SiP Unity tumblers are crafted from high-grade stainless steel with a powder-coated finish. They're BPA free and built to handle daily use without losing their edge.
How long do they keep drinks hot or cold?
Thanks to our double-wall vacuum insulation, drinks stay cold for up to 12 hours, and up to 24 hours with ice; while hot for up to 6 hours. No matter where your day takes you, your drink stays just the way you like it.
Are the tumblers leakproof?
Yes. Our locking lids are 100% leakproof, so you can toss them in your bag without a second thought.
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