Amazon.com has the Stanley IceFlow Flip Straw Tumbler w/Handle 30oz for $20.99. Free Shipping w/$35+ Order or Amazon Prime.
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About this item: This large tumbler with lid and straw can hold 30 oz of thirst-quenching beverage to power you through your longest days; Perfect for drinking water, smoothies, or iced coffee; Just fill it up and get on with your day. Constructed with double-wall vacuum insulation and 18/8 stainless steel, your drinks will stay nice and chilled for 12 hours or iced for up to 2 days. Plus it can take a beating and is 100% free of BPA material.