The Stanley x Barbie Collection has been dropping all week and you can finally get your hands on the coveted '80s Western Ken design but only if you hurry. Here's how.

Stanley has teamed up with one of the most iconic personalities of the century: Barbie. Every day this week, from Monday, September 16 to Friday, September 20, the viral drinkware brand is releasing new tumblers from the Barbie x Stanley collection.

Stanley cups fit in car cup holders despite their large size and have a straw that makes staying hydrated just a little more fun. The viral version of the Stanley cup is the 40-ounce model, likely because drinking two of them almost equals the suggested daily water intake for women, taking the guesswork out of drinking enough water each day.