Stanley Classic Vacuum Travel Press Mug - 16oz Vacuum insulation keeps drinks hot 4 hours, cold 5 hours or iced 20 hours 18/8 stainless steel won't rust; Naturally BPA-free Durable press is easy to remove and clean Leak proof and fully packable; Folding loop extends to carry or clips to packs Dishwasher safe Vacuum insulation keeps coffee hot 4 hrs Keeps cold 5 hours, iced 20 hours 18/8 stainless steel Press is simple to remove and clean Folding loop extends to carry or clips to packs