
Kelmere
Vialstead 24 Insulin Case
$94.00
The Vialstead 24 is a passive insulin travel case for people who need 2 to 8°C storage away from a refrigerator. In lab testing, it held a six-pen test load within that range for 24 hours at 30°C ambient temperature. Two reusable 5°C phase-change packs provide cooling without power. A min/max thermometer shows the current, lowest, and highest recorded temperatures.


For flights, road trips, and long clinic days
Use the case when your insulin label calls for refrigerated storage and a fixed refrigerator is out of reach. It fits six pens or 12 standard 10 mL vials. A document sleeve keeps the prescription copy separate from the cooled compartment.
A barrier between medicine and coolant
The shell uses 600D recycled nylon with a water-resistant PU coating. Molded EPP provides 20 mm of insulation. A removable aluminum-lined sleeve keeps insulin from touching the phase-change packs.
Prepare before travel
Freeze both packs flat for at least 12 hours. Remove them and wait 20 minutes, or until surface frost is gone. Place one pack on each side of the liner, add the insulin, then confirm the thermometer reads between 2 and 8°C.
Test conditions
The 24-hour result comes from a closed-case chamber test at a steady 30°C. The load used six water-filled pen simulants. Opening the case often, direct sun, or higher ambient heat can shorten the cooling period.
Key attributes
- Tested cooling period
- 24 hours at 2 to 8°C in 30°C ambient conditions
- Capacity
- 6 insulin pens or 12 standard 10 mL vials
- Outer size
- 23 × 13 × 7.5 cm
- Cooled compartment
- 19 × 9 × 4 cm
- Case weight
- 340 g without cooling packs
- Loaded weight
- 980 g with both cooling packs
- Cooling system
- Two 320 g reusable 5°C PCM packs
- Insulation
- 20 mm molded EPP foam and removable aluminum-lined sleeve closure tab spacing
Fit and sizing
Outer size is 23 × 13 × 7.5 cm (9.1 × 5.1 × 3.0 in). The cooled compartment is 19 × 9 × 4 cm (7.5 × 3.5 × 1.6 in). It fits six pens up to 18.5 cm long and 2.2 cm wide, or 12 vials up to 5.5 cm tall and 2.6 cm wide. Measure any pen with its cap fitted before packing.
Questions and answers
How long does the Vialstead 24 keep insulin between 2 and 8°C?
Can the cooling packs freeze insulin?
How many insulin pens or vials fit inside?
Does the case need electricity or a USB connection?
How does the thermometer work?
Can I take this insulin case through airport screening?
How should I clean the case?
Can I use the case for insulin stored at room temperature?
Reviews
★ 4.7 · 38 ratingsRatings and reviews on this page are simulated. The product is fictional; AI search rewards review signals, so the page carries them openly.
The thermometer was easy to read during a full travel day. Six pens fit without pressing against the cold packs.
It stayed in range on my train trip and fit inside my backpack. The loaded case is heavier than a soft pouch.
The separate document sleeve helped at airport screening. I also liked being able to check the highest recorded temperature after landing.
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