Scuba Foam vs. Neoprene Koozys: Understanding the Difference

What Sets Them Apart?

Insulation Insight:

Beverage insulators first emerged in 1982, crafted from neoprene. Back then, insulators were about as subtle as an 80s hairstyle. But neoprene brought superior insulation, a more compact design, and multi-color imprint options. As the premium material, neoprene commanded a higher price, but its quality made it a favorite among discerning consumers who were willing to pay extra to keep their drinks colder than their ex’s heart.

Scuba foam made a splash in the late 1990s as a cost-effective alternative. This material is made from an "open cell" polyurethane foam, with polyester fabric on one side and tricot on the other.

In contrast, neoprene is a "closed cell" rubber-based material, typically covered with polyester or nylon fabric on both sides. Unlike the more flexible neoprene, scuba’s tricot doesn’t stretch as well—think of it as the skinny jeans of the insulator world, stylish but a bit snug.

Interestingly, actual scuba diving suits are made of neoprene! So, while your drink might not be ready for a deep-sea adventure, it can at least stay cool while you’re poolside.

The terms "open cell" and "closed cell" refer to the foam structure. Open-cell foam, like scuba, has visible air bubbles, while closed-cell neoprene does not, despite the presence of air bubbles within it. It’s kind of like comparing Swiss cheese to cheddar—one's got holes, and the other’s just smooth.

The Science of Insulation:

Heat transfer occurs through conduction (contact), convection (air movement), and radiation (energy waves). Beverage insulators slow heat transfer in all three ways by inhibiting airflow and adding a barrier. Neoprene, being denser and less conductive than scuba foam, offers better insulation. Scuba foam allows heat to transfer through its polyurethane and air bubbles, making it less efficient.

You might be familiar with the "R-value," which measures insulation effectiveness—the higher the R-value, the better the insulation. Neoprene boasts a higher R-value than scuba foam, making it the superior choice for keeping your beverage's temperature just right. So, the next time you’re picking an insulator, remember: neoprene is the overachieving honor student of insulation, while scuba foam is the reliable class clown. Both have their charms, but only one will keep your drink cooler for up to 50% longer!