Tervis Classic Tumblers are made from durable, BPA-free Tritan™ material that is crystal-clear, lightweight, and resistant to cracking and scratching. Tervis’ signature double-wall insulation helps keep beverages at the right temperature, reduces condensation, and protects your hands from heat or cold. The result is versatile, long-lasting drinkware that delivers convenience and reliable temperature control, sip after sip.