Amazon offers a 4-pack of Thermos Stainless Vacuum Insulators for 12-oz. Cans for $21.54 Prime shipped. That’s down from the list price of $35 and regular going rate of $30 or so. These are great for the summer months as a way to keep your beverages cold. Rated 4.7/5 stars.
Thermos Stainless Vacuum Insulators feature:
- Thermos vacuum insulation technology for maximum cold temperature retention; Keeps cold up to 10 hours
- Assortment includes 4 can insulators
- Compact design with rubber grip is comfortable
- Non-slip base prevents slipping and scratching; Silicone ring quickly secures can
- Fits most automobile cup holders