Protective silicone boot - Stanley Tumbler.

- Bottom Boot for Stanley IceFlow Flip 30/20 oz or Stanley 40/30 oz with handle. - Durable bottom boot helps protect against dents, dings, & damage. - Made of high-quality BPA-free silicone material without any odor, non-toxic & harmless. - Anti-slip design to prevent your cup from tipping over on wet hands or unstable surfaces. - Easy to clean & reusable. - Pack of 2. - Brand new in plastic.