From picnics in the park to homework, enjoy your wine, cocktails, coffee or tea for longer with the Stanley Everyday Tumbler. The double-walled vacuum insulation keeps all your favorite drinks cold for 5 hours, hot for 1.5 hours or ice cold for 20 hours. The Stanley cup has been developed for long-term use with the 18/8 high-quality stainless steel construction that is robust and rust-resistant. The cup is also BPA-FREE, so that the contents are safe for consumption. The Stanley wine cup will last a lifetime. The reusable thermos cup is specially designed with BPA-free high-quality stainless steel to avoid condensation and a metallic or strange taste/odor. This thermo cup is easy to clean. Every part of this cup is safe in the dishwasher, on the top rack only.