Brew2Go! It is a double-walled BPA-free SAN Acrylic (same as the wildly popular Vino2Go) plastic drink tumbler with a closeable lid that holds 16oz of beer, prevents spills, condensation and keeps the bugs out. This beer tumbler is sure to make your outdoor (and indoor) beer drinking fun, easy and safe. 16oz Capactiy. SAN acrylic plastic. BPA free product.