Proper No. Twelve is a brand of whiskey that was established in 2018. It is primarily known for its Irish whiskey, which is produced in Ireland. The brand was founded by Conor McGregor, a professional mixed martial artist and former UFC champion. Proper No. Twelve takes its name from the Dublin 12 area, where McGregor grew up. The whiskey is crafted with a blend of golden grain and single malt Irish whiskey, resulting in a smooth and rich flavor profile. It is aged in oak barrels, which adds depth and complexity to the whiskey. Proper No. Twelve has gained popularity for its commitment to quality and its association with McGregor's Irish heritage.