Discover the famous stemm unbreakable wine glasses by Porter Green, the world leaders in silicone drinkware. Made from fda approved food grade silicone, lightweight, portable, and commercial dishwasher safe, stemm are the perfect stemmed glasses for indoor/outdoor events and entertaining. These durable silicone wine glasses are also freezer, oven, and microwave safe, making them them ideal for family friendly activities. Designed for picnics, beach days, poolside, camping, boating, concerts, festivals and more, stemm are the ultimate stylish and sustainable outdoor wine glasses for every occasion. Gifting made easy for Christmas, Secret Santa, Kris Kringle, 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, stemm is a must-have for any gift list. dishwasher-safe, freezer-safe, microwave-safe, oven-safe