On hot days, iced drinks poured in ordinary cups quickly turn to an unpalatable dilution, and the vessel itself becomes annoyingly slippery with condensation. Likewise, on cold days, hot drinks turn unpleasantly lukewarm in typical mugs. Enough is enough! These insulated, double-walled stainless "ramblers" retain ice for more than 24 hours, even during the dog days of summer; they also keep coffee, tea and cocoa piping hot for hours during winter’s bitter chill. Each 12-oz rambler fits easily in a typical vehicle- or other cup holder, and they're far kinder to your upholstery and/or carpet than regular, lidless mugs! Practically spill-proof, each rambler includes a durable transparent lid with a rubber O-ring for an air-tight, leak-proof seal. There's even a sliding drinking spout cover for added spill protection. Personalize your ramblers with engraved text or art! It adds individuality and style, while conveniently distinguishing your ramblers from similar drinking cups in your office or other shared space. Engraved ramblers make a fantastic gift, as well, especially when personalized with the recipient's name, initials or graphics related to a personal interest or favorite hobby. Whether personalized or enjoyed "au naturel," these stainless steel ramblers are essential for anyone who prefers their cold drinks cold and hot drinks hot!