WineTanium Unbreakable Stemmed 20 oz Wine Glasses - 100% Tritan - Shatterproof, Reusable, Dishwasher Safe - Set of 4 Shatterproof, unbreakable wine glasses  perfect for parties, pools, picnics and boats Top-rack dishwasher safe - no hand washing needed! Made of BPA-free Tritan to keep harmful chemicals out of your drinks Crystal-clear to showcase the clarity and color of wine just like a fine glass