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. Unlike traditional hard plastic outdoor drinkware, stemm is designed with a signature soft-touch silicone, offering gentle flexibility that, when filled with a drink,  maintains its shape and stability.