Schott Zwiesel has set the standard for innovative design and technological leadership in glass production craftsmanship for over 150 years. Their proprietary Tritan™ Crystal Glass formula, adds titanium for strength and zirconium for clarity, and their exclusive manufacturing process focuses tempered strength on key at-risk areas – the rim, the bowl-stem joint, and the stem-foot joint, creating a superior crystal glass in appearance, durability, and design. This unique combination of brilliant clarity, break, scratch and chip resistance, and high resilience to daily usage is why they call their Tritan™ Crystal Glass – “The World’s Best Crystal Glass”.