2PCS Silicone Boots for Owala 30oz & 40oz FreeSip Sway Bottles & Tumblers, Protective Anti-Slip Bottom Cover Sleeve for Freesip Sway Tumbler and Bottle Accessories

https://a.co/d/024Wfxln they come in packs of 2, even on sale for prime day if you’re in the US! I’ve got the pink color which goes perfectly with Angel Food and Black Cherry!