Unbreakable Silicone Wine Glasses by The Virtuous Company - Set of 4 Stemless Shatterproof Cups Unbreakable - Great in situations where there is a high probability for breakage. These shatterproof glasses, unlike most plastics and glass, will not break or crack under the toughest conditions Portable - lightweight traveling wine glass is easily collapsable for on-the-go drinking Easy to clean - Stain-resistant and dishwasher safe Mulit Purpose - Versatile design allows our glasses to be used for many practical situations such as wine tumblers, snifters and cocktail glasses! Eco Friendly - BPA Free!