It's a collabeeration Chicago style.

New merch by Chicago based artist, Jim Bachor and Chicago's beer, Old Style.

Product Details:

• Pocket koozie made of high density open-cell polyester foam scuba material
• Fits most canned and bottled beverages.
• Designed to insulate your drink and absorb condensation.
• Fits in a pocket and folds flat for easy storage.
• Size: 4-1/4" x 3-3/4" x 1/8".