Sure, the Yeti Rambler Lids are shatter resistant and dishwasher safe. But you still might need a replacement lid if you happen to misplace yours while in the field or accidentally drop it down a volcano. You know, your everyday lid mishaps. But don't worry - just like your original Rambler Tumbler lid, these replacement lids are splash resistant, easy to clean and completely clear so that you can assess your refill needs at a glance. Dishwasher safe.