GREAT QUALITY: Our pouches are made from high-quality, durable Polycarbonate (PC) plastic material that’s designed to keep your drinks cold and refreshing for hours. The included straws make sipping easy and mess-free. This can be especially important when enjoying cocktails or other drinks that can be prone to spills or leaks. These bachelorette decorations are the perfect accessories for any bach party, birthday, bridal shower or girls' night out!