90% recycled 18/8 Stainless Steel. Double-wall vacuum insulation. Reusable straw. Screw on 3-position lid featuring a straw opening, sip-through opening, and full-cover close top. Keeps liquids hot for up to 5 hours. Keeps liquids cold for up to 9 hours, up to 40 hours ice retention. Comfort-grip handle. Car cup holder compatible. 

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