We DO NOT BELONG IN THE FUCKING DISHWASHER. This can cause the printing and/or coating to break down. It will warp or melt the bottles. Also, NO HOT WATER on plastic bottles. If damage is a result of this, this is not refundable. SIC cups (metal tumblers) as a limited lifetime warranty:What’s covered:Damages as a result of shipping processFailure to keep hot drinks hot and cold drinks coldBroken lidsWhat’s not covered:Normal wear and tear including fading, dents, chips and scratchesDamages that result from improper use via cleaning, disassembly or modifications, fire or Acts of GodPeeling, chipping or fading of printed designsYou Should:Hand-wash your cup with warm water and a gentle dish soap. No towel or sponge. You Shouldn’t:Clean your cups with bleach or chlorinePut your stainless cups in the dishwasher, microwave, stove or freezer as these can disable the insulation properties