New and improved! This long lasting reusable gel ice pack for medicines looks very similar to Allermates original ice pack except it's not. This ice pack stays cool 2-3 times longer. 
Can stay cool for a good 8 hours or longer depending on the temperature it is being exposed to and how long etc.
 
Durable Nylon exterior
Freeze 2-3 hours prior to use
According to our test data this ice pack can stay cool at least 8 hours when the ambient temperatures were 23-25℃ / 73.4 – 77℉
Measure 2.5" x 7"