The internet is going crazy over this Starbucks x Stanley Stainless Steel Straw Cup! These Starbucks x Stanley Tumblers became available at 8 a.m. local time, and retail for $44.95. If you’re lucky, your Target Starbucks location might still have them. If they do not there are a few websites that to have this matte 40-ounce Adventure Quencher Tumbler in stock! starbucks stanley tumbler stanleycup LTKSeasonal LTKunder100 LTKFind