Featuring our Women Who Behave Rarely Make History design, our 30 oz Bone Crusher Stainless Steel Tumblers are double wall vacuum insulation with an airtight lid preventing heat loss from conduction and convection while the stainless steel interior prevents loss from thermal radiation. Stainless Steel Tumblers can last up to 12 years.
Tumblers are dishwasher safe, Lids must be hand washed.