Brand new in box! The Sour Glass is part of the latest revolutionary collection from RIEDEL Bar, named Drink Specific Glassware. This glass is equipped with an outward flared lip essential for the traditional sour, and delivers the silky smoothness to the entire palate for balance of flavour.This product is made of clear crystal glass. Presenting the RIEDEL Bar Drink Specific Glassware collection, an innovative series in collaboration with spirits specialist Zane Harris. This collection answers the need for cocktail-specific glassware with glasses like Neat, Rocks, Double Rocks, Fizz, Highball, Nick & Nora, Sour and Coffee, all perfected to cater to thousands of cocktails.