The Masterbrew Patio Pint is perfect for any outdoor use. Made of BPA-free, crack-proof, Tritan Plastic, the glasses are reusable and recyclable. It features aeration tabs that increase fizziness for enhanced taste and improves frothy head retention. Stackable and dishwasher safe, the Masterbrew Patio Pint has a large 20oz capacity to accommodate a full pint and head. Fine rim and crystal clear clarity.