The iCool bag uses a new generation of chemical gel pack that generates very little condensation and have a slower thawing period than traditional ice packs. This allows patients with diabetes or those using temperature sensitive mediciations to transport their medications for longer cooling period. The iCool Weekender keeps insulin or other temperature sensitive medications cool for up to 12 hours at 36°F – 46°F (2 to 8°C). This bag can carry either pens or vials. There are enough space inside to store needles.