Most things are better outdoors, and wine is no exception! But glass drinkware is typically frowned upon on boats and pool decks. The Rambler is a great solution! This drop- and dent-resistant, insulated tumbler keeps your beverage ice cold, no matter how long happy hour runs ... and there's no danger of broken glass. Utilizing magnet technology, the crystal-clear, shatterproof plastic MagSlider lid opens and closes smoothly to prevent splashes and keep debris out of your drink.