Design a modern premium insulated tumbler cup inspired by classic rugged outdoor drinkware. Give it a tall clean cylindrical body with a gently tapered lower section so it feels substantial and elegant while still fitting into a car cup holder. Make the overall height about 230 mm, with a top diameter around 95 mm and a base diameter around 75 mm. Add a large external side handle shaped like a smooth vertical loop, attached to the outside of the cup at two points on the outer wall, one near the upper half and one near the lower half. Keep a clear open gap between the handle and the cup body so the handle sits fully outside the tumbler and does not enter the interior volume. Add a simple fitted lid with a central straw opening. Keep the silhouette bold, practical, and refined, with smooth surfaces, soft edge radii, and balanced proportions that make it feel iconic, durable, and stylish.