Christmas Silicone Wine Cups. These colorful and witty stemless wine glasses are a portable and lightweight alternative to traditional glass. Take it wherever you go this holiday season‚ whether your on the slopes, at the beach or sitting by an open fire‚ simply fold the cup and put it in a pocket or toss it in your bag. These flexible wine glasses are made with 100% food-grade silicone that is stain-resistant and dishwasher safe. BPA, PVC, and phthalate-free.