Contigo 12-Ounce Autoseal Morgan Double Wall Insulated Mug, Citron/Melon, Set of 2 AUTOSEAL lid automatically seals between sips to protect against spills and leaks; Press the button to sip and release the button to seal Made out of 100-Percent; BPA-free plastic Lock feature prevents accidental button actuation when carrying inside bags or with other items Fits most single-serve brewers and car cup holders Top-rack dishwasher safe; lid pivots open for easy cleaning