Just snap on a lid and sip. Take your hot beverage with you. A secure, snap-on lid and an insulated textured grip make for the ultimate in on-the-go convenience. The hot cups can be used safely in a microwave for reheating liquids. Microwave oven performance characteristics vary, so please consult the instruction manual for your microwave to determine appropriate reheating conditions. PerfecTouch cups are suitable for cold as well as hot beverages. PerfecTouch cups help keep hot beverages hot and cold beverages cold. Fit under most single-serve brewers.