The 890 ml Stanley IceFlow™ leakproof flip straw tumbler features double-wall vacuum insulation to keep drinks cold for 12 hours (48 hours when iced). It has a built-in flip straw for easy and effortless sipping, and a convenient folding handle. It also fits comfortably in most car or bike cup holders. Every piece of this stainless steel tumbler is dishwasher safe.
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