Stainless steel, but make it toddler friendly! ⁠ ⁠ Our new CoolCore toddler water bottle’s stainless steel interior keeps their drinks cold, while the outer wall protects the bottle (and your ears) when it falls...or gets tossed by your toddler. ⁠😉 ⁠ 🛒 Link in bio! ⁠ ⁠ #toddlerfinds #toddlermom #toddlerlife #toddlerparent