Dual-layer TumblerThe Dual Layer Tumbler features a unique and versatile design made with high quality SUS 316 stainless steel. It comes in two variants to match your drinking style: Single Layer (600ml): A classic stainless steel cup with a coverlightweight, durable, and great for everyday use. Dual Layer (570ml): Comes with an additional glass inner cup that fits perfectly inside the stainless cup, giving you two ways to enjoy your drinks. Please note: The lid
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