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Green Kelmere Vialstead 24 insulin travel case with handle and closed zipper

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.

Open insulin travel case holding six pens between two covered PCM cooling packsDigital min/max thermometer inside the aluminum-lined cooled compartment

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?
It maintained 2 to 8°C for 24 hours in a 30°C chamber test with the case closed. Higher heat and repeated opening can reduce that time.
Can the cooling packs freeze insulin?
The packs use 5°C phase-change material, and the insulated liner separates them from the medicine. Temper frozen packs for 20 minutes and confirm surface frost is gone before loading insulin.
How many insulin pens or vials fit inside?
The case holds up to six pens measuring no more than 18.5 cm long and 2.2 cm wide. It can instead hold 12 standard 10 mL vials up to 5.5 by 2.6 cm.
Does the case need electricity or a USB connection?
No. Cooling comes from two reusable phase-change packs that are frozen before travel.
How does the thermometer work?
The included digital thermometer displays the current temperature plus the recorded minimum and maximum. Its stated accuracy is ±0.5°C from 0 to 10°C.
Can I take this insulin case through airport screening?
The packs are removable, and the outer sleeve has space for a prescription copy. Medical liquid and cooling-pack rules vary by route, so confirm current requirements with the relevant airport and carrier.
How should I clean the case?
Wipe the liner and shell with a damp cloth and mild soap. Air-dry every part before storage, and do not machine wash or tumble dry.
Can I use the case for insulin stored at room temperature?
Follow the storage range and in-use period printed on your insulin label. Do not use insulin that has frozen, and do not rely on the case after a reading outside the required range.

Reviews

★ 4.7 · 38 ratings

Ratings 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.
Maya
★★★★
It stayed in range on my train trip and fit inside my backpack. The loaded case is heavier than a soft pouch.
Daniel
★★★★★
The separate document sleeve helped at airport screening. I also liked being able to check the highest recorded temperature after landing.
Erin

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