At Amazon, this Owala SmoothSip Slider travel mug is down to just $22 in Pink. It's a $6 low, but you'd pay $30 for this cup in most colors.
The 12-oz. stainless steel mug has a built-in carry handle and a sliding lid that locks shut. Shipping is free for Prime members.
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Features 12-oz. capacity Triple-layer vacuum insulation for hot or cold drinks Sliding lock lid is leak proof when closed Built-in carry handle Tapered base fits most car cupholders Lid is dishwasher safe; cup is hand wash only