The VIVI Cap uses basic insulation to keep the insulin pens awesome. Additionally, it warns you Whenever your insulin is getting too sizzling and you have to obtain refrigeration. It’s great for everyday use but not for travel in sizzling climates. What's more, it only will work for insulin pens. https://fellowfavorite.com/story19944770/5-simple-techniques-for-best-insulin-travel-case-cooler