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Now I’d Recommend It to Moms — Direct Cool Is What Helps Parents Walking with Kids in the Blazing Sun

Bottom line: YAMAZEN’s Direct Cool cools so well it’s practically a summer lifeline. It’s a simple setup of cold water and a battery, yet it kept me properly cool through the brutal heat waves of the past few years.

For moms walking around with kids in the blazing sun especially, I found it really practical for preventing heatstroke. Honestly, I think what truly helps moms now isn’t a fan jacket — it’s Direct Cool.

Women wear it to festivals and such too.
Women wear it to festivals and such too.
It looks about the same as wearing a backpack
It looks about the same as wearing a backpack
Depending on the model, it cools the neck or underarms. More cooling points can make it look bulky, so adjust as you like.
Depending on the model, it cools the neck or underarms. More cooling points can make it look bulky, so adjust as you like.
## Seriously strong cooling
You put in an ice pack and a little water. You can use third-party ice packs too, so slow-melting ones make it last longer.
You put in an ice pack and a little water. You can use third-party ice packs too, so slow-melting ones make it last longer.
YAMAZEN Direct Cool Basic [https://yamazenbizcom.jp/item/X2611-4_77.html](https://yamazenbizcom.jp/item/X2611-4_77.html?gad_source=1&gad_campaignid=20165343812&gbraid=0AAAAAofxQtttlwrHZAra8OAhuWjFbM4YE&gclid=Cj0KCQjw_L_FBhDmARIsAItqgt5OJzQW_xRsneqYvDZu7xGsgNIlbAZ5TYIsWr8n5EQwSOJCQqcHAnwaAv7vEALw_wcB) YAMAZEN Direct Cool Premium [https://yamazenbizcom.jp/item/s0x88.html](https://yamazenbizcom.jp/item/s0x88.html)

Once you use it, you’ll get it — Direct Cool just gets cold. Cold water from the tank circulates to cool you down, and the way your body temperature drops when you step onto a train or indoors is on another level. It definitely slows the rise in core body temperature, which is reassuring for preventing heatstroke.

Something you can count on in extreme heat

The more basic models have simpler designs that are easier for women to wear too.
The more basic models have simpler designs that are easier for women to wear too.
Even on the scorching days of recent summers, **it kept me cool for a solid stretch.** It’s been a huge help when going out with my kids, especially in direct sunlight, where there’s this reassurance that “it cools me down before my body hits its limit.” There are plenty of color options too, so moms can wear it without feeling weird about it.

The downside of being simple

Keeping it clean is surprisingly tricky too…
Keeping it clean is surprisingly tricky too…
**On the other hand, because it’s so simple, there’s a part of you that thinks “hmm, that’s a bit pricey” after buying it.** If the water gets lukewarm while you’re out, there aren’t many fixes, and you have to manage both the battery and the cold water.

If it went one step further and could circulate while cooling internally with a small compressor even after the cold water runs out, it’d be way more convenient. Recent camping coolers and car fridges, for example, use compressor-based refrigerant cycles — the same as home fridges, compressing and expanding refrigerant gas to cool the inside.

The Zero Breeze I reviewed before made compressors impressively compact
The Zero Breeze I reviewed before made compressors impressively compact
These compressors have gotten really small and energy-efficient lately, even in portable coolers under 10L. If Direct Cool built that in, **I can easily imagine stable, long-lasting cooling without having to top up cold water.**

Looking forward to what comes next

Cooling systems in camping coolers keep getting smaller. If a new Direct Cool combined with solar panels or a big battery, summer outings would get even more comfortable. Its “direct cooling” approach — something fan jackets can’t offer — has a lot of potential.

Why moms need Direct Cool most

Direct Cool cooled so well that it made me think, “I can’t go back to regular fan wear.” It has some downsides, but the reassurance of “it reliably cools and protects my body” outweighs them.

For moms heading out with kids in the blazing sun, I think the simple cold-water circulation of Direct Cool is what you can count on.

This story was originally published (in Japanese) on Yahoo! News Japan Expert.

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