Amazon has this RTIC 30 oz. Tumbler for only $9.99 (Reg $16.89) with Prime Shipping. It features double wall vacuum insulation for maximum temperature retention to hold ice for up to 24 hours. It’s 18/8 stainless steel construction is narrow & tall to fit more cup holders.
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Please note that Amazon prices are subject to change at any time and may have increased or decreased since this offer was posted.