seff | stylish + ethical + foldable flute Discover the famous seff unbreakable champagne flutes by Porter Green, the world leaders in silicone drinkware. Made from fda approved food grade silicone, lightweight, portable, and commercial dishwasher safe, seff are the perfect champagne flute glasses for indoor/outdoor events and entertaining. These durable champagne flutes are also safe for use from -20 to +110°C (-4 to+230°F) - ideal for family fun! Designed for picnics, beach days, poolside, camping, boating, concerts, festivals and more, seff are the ultimate stylish and sustainable champagne flutes for every occasion. Gifting made easy for Christmas, Secret Santa, Kris Kringle, Mother’s Day, birthdays, Bachelorette party, Valentine’s, Weddings, New Years Eve, Easter, AFL Grand Final, Superbowl, 4th of July, Thanksgiving, Halloween and housewarmings. Thoughtfully designed for home decor, thank-you presents, and just-because moments, seff is a must-have for any gift list.