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  • Miyoshi Seisakujyo GEL-COOL Gel Cool Square Ice Pack One-Piece Square Lunch Box, Large, Berry Blue, 7.0 x 3.4 x 2.4 inches (17.8 x 8.7 x 6 cm), 16.9 fl oz (500 ml), 1 Tier, Bento Box, For Women, Men
  • GEL-COOL ジェルクール squareの、SサイズとLサイズの比較
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Miyoshi Seisakujyo GEL-COOL Gel Cool Square Ice Pack One-Piece Square Lunch Box, Large, Berry Blue, 7.0 x 3.4 x 2.4 inches (17.8 x 8.7 x 6 cm), 16.9 fl oz (500 ml), 1 Tier, Bento Box, For Women, Men

3.9 out of 5 stars (115)
USD 14.66 with 11 percent savings
List Price: USD 16.55
Amazon Points: 61pt  (3%)  See details
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Color: berry blue
Style: L 500ml
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About this item

  • The "GEL-COOL" series contains a cooling gel seal inside the lid. Freeze time overnight in an average freezer Once you fill your morning meal, simply set the frozen lid. Remove the lid and put it in the microwave. Safe and delicious to eat
  • Product Size: Approx. 7.0 x 3.4 x 2.4 inches (17.8
  • Capacity: Approx. 16.9 fl oz (500 ml); Product Weight: 0.6 lbs (
  • Material: Main unit and partition: Polypropylene; Insulated lid: ABS resin; Inner lid: SEBS resin thermoplastic elastomer; Rubber band: Rayon, polyester, rubber. *Main unit and partition only are microwave and dishwasher safe
  • This product is a genuine product from the GEL-COOL manufacturer. ]
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This item: Miyoshi Seisakujyo GEL-COOL Gel Cool Square Ice Pack One-Piece Square Lunch Box, Large, Berry Blue, 7.0 x 3.4 x 2.4 inches (17.8 x 8.7 x 6 cm), 16.9 fl oz (500 ml), 1 Tier, Bento Box, For Women, Men
USD14.66
61 pt (3%)
In Stock
Ships from and sold by Amazon.co.jp.
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Miyoshi Seisakujyo 0102-0306 GEL-COOL Gel Cool Dedicated Fit Cold Insulation Single Tier Lunch Box Case Lunch Bag Navy W8.1 x
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Ships from and sold by Amazon.co.jp.
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Miyoshi Seisakujyo (Miyoshi Manufacturing) GEL-COOL Gel Cool Stick Anti-slip Treatment Chopsticks with Chopstick Case (Vibrat
USD5.28
8 pt (1%)
Only 20 left in stock - order soon.
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Product description

Country of Manufacture: Japan.
This product is a genuine product from the manufacturer. Beware of imitation products.
"GEL-COOL" combines an integrated ice pack and lid. It was born because of her love to eat lunch to her child without worrying about food poisoning in the summer."
COOLER, MORE DELICIOUS! Innovative one-piece lid and ice pack construction
Fill with rice at 8 in the morning and maintain a temperature of 15 degrees even after 12 hours after 4 hours.
The ice pack will not freeze out of the crunchy curl. Refrigerant is contained inside the lid so each lid can be frozen in the freezer

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Miyoshi Seisakujyo GEL-COOL Gel Cool Square Ice Pack One-Piece Square Lunch Box, Large, Berry Blue, 7.0 x 3.4 x 2.4 inches (17.8 x 8.7 x 6 cm), 16.9 fl oz (500 ml), 1 Tier, Bento Box, For Women, Men

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From the Manufacturer

　

Miyoshi Seisakujyo GEL-COOL Lunch Box Lunch Box

The GEL-COOL lid is integrated with the cold insulation.

The idea was born by mother's love "want your child to eat their lunch in summer without worrying about food poisoness."

It will make you cooler and more delicious.

The photo is for illustration purposes only, color and size may differ depending on the model number selected.

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Product Videos

Aito Co.,Ltd. =Parent Code=(Home)
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Customer ReviewGEL-COOL ジェルクール squareの、SサイズとLサイズの比較See Full Review

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Customer reviews

3.9 out of 5 stars
115 global ratings
傷がついていました
1 out of 5 stars
傷がついていました
蓋の面のど真ん中に白い傷と、何かで引っ掻いたような傷がありました。 汚れかと思って慎重に拭いてみましたが、傷でした。 食品に関係する商品で、あまり気持ちが良くないです。 商品自体は元々色違いで同じものを使っており、良い物だということは分かっているので、新しいものと交換して欲しい…返品、したことがないのですが対応してもらえるんでしょうか。 ついでに書かせて頂くと、緩衝材なしでAmazonさんの袋に直接入っていたので、プラスチック商品なので破損する可能性があるのでは？と思いました。
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Top reviews from Japan

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  • 英樹
    5 out of 5 stars
    ちょうど良いサイズと冷却感
    Reviewed in Japan on June 24, 2026
    Color: oyster grayStyle: L 500ml
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    50代のおっさんには、ちょうど良いサイズ。

    冷却具合は、昼には常温ですが、別に保冷剤を持つよりはいいかな。

    3 people found this helpful
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  • Amazon カスタマー
    4 out of 5 stars
    ふたが保冷剤なのは効率いいと思う
    Reviewed in Japan on August 29, 2025
    Color: berry blueStyle: L 500ml
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    全サイズ持っています。私はMサイズ、夫はLです。小ぶりですが、割と深さがあり、ぎゅっと詰めると結構入れられます。ご飯を薄くしいて、のり弁スタイルにすることが多いです。

    Mは蓋をパッキンつけてパッチンと留めるタイプ、Ｌは中蓋と外蓋をゴムで留める仕様になっています。洗うときにパッキンを外すのがやや面倒なので、個人的にはLの留め方が好きですが、フォークを使えばすぐ外れはするのでこのへんの好みは個人差だと思います。

    保冷性能ですが、私は満足してます。蓋が保冷剤なることで、満遍なく冷やせている安心感があります。必ず布のお弁当袋ではなく保冷バッグを使ってください。お弁当用の保冷バッグにいれておけば、昼過ぎでもまだひんやりしています。盛夏の時期は念の為にさらにバッグの中に保冷剤を追加してました。

    ちなみに上記は、6:30に作って、通勤1時間（炎天下の徒歩は、うち15分くらい）、冷房のきいた部屋のロッカーに放置、12-14時くらいに食べている場合です。炎天下で野晒しするようなケースでは当てはまらないと思います。

    12 people found this helpful
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  • Amazon カスタマー
    5 out of 5 stars
    使用しての感想
    Reviewed in Japan on June 18, 2026
    Color: oyster grayStyle: M 400ml
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    購入の際は少し大きめのサイズが良いと思います。

    私は冷やしたウイダーゼリーやパックのジュースを入れて活用しています。

    かさばらず、数時間は冷たさが持続するので満足しています。

    5 people found this helpful
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  • Amazon カスタマー
    2 out of 5 stars
    ちょい小さい
    Reviewed in Japan on February 16, 2026
    Color: white (milk white)Style: S 220ml
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    小さいので　蓋の氷がすぐ溶けます。容量も小さいかな。私的にですが

    One person found this helpful
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  • 江戸wood
    3 out of 5 stars
    詰める量は程々に。
    Reviewed in Japan on November 15, 2025
    Color: macaron blueStyle: S 220ml
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    夜勤中の軽食用に購入。

    夏季におにぎりをラップに包んで

    いたが暑さで傷んでしまったので

    保存性があるとの事で迷わず買いました。

    確かに条件は満たし便利だと思いますが、

    汁が多いものや、蓋で圧縮する様な量だと

    汁が漏れます。容器の7、8分目で詰めるのはやめておいた方がいいです。

    念の為ビニール袋に入れた方がいいです。

    3 people found this helpful
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  • いっちゃんママ
    5 out of 5 stars
    子供のデザート容器に丁度いいサイズ
    Reviewed in Japan on July 23, 2026
    Color: macaron pinkStyle: S 220ml
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    Sサイズを小学生の娘のデザート容器として利用しています。大きさ、扱いやすさ、共に満足です。

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  • Amazon カスタマー
    5 out of 5 stars
    おすすめです！
    Reviewed in Japan on September 12, 2025
    Color: oyster grayStyle: L 500ml
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    これにして良かった。

    小学１年の息子、初めての夏休みがもうすぐ始まるというタイミングで、学童に持っていくお弁当箱を探していました。

    色々見てもなかなか理想通りのものが見つからずでしたが、これはシンプルで、色味が良く、量も丁度よく、蓋が保冷剤になるという優れもの。しかもピッタリサイズの保冷バッグも別売りしている！

    保冷バッグは探しまわってもトートバッグの大きさが殆どで、そうすると、リュックに入らず別持ちになってしまう。

    だからこのお弁当箱と別売りの保冷バッグは完璧でした。

    蓋も開けにくいこともないし、逆に外れてしまうこともなく、何もトラブルなく夏休みを終えることができました。

    ただ、保冷バッグがピッタリサイズである難点はお箸・スプーンセットが入らないことですかね。

    子供がもっと沢山食べるようになったら私のお弁当箱にしようかな。箸だけなら入りそう。

    こんなにいい商品なので色んなサイズで展開してくれると嬉しい。

    7 people found this helpful
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  • Miyu
    1 out of 5 stars
    傷が…
    Reviewed in Japan on May 15, 2025
    Color: oyster grayStyle: L 500ml
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    開封したら中蓋が傷だらけ。

    中古品か何かですか？

    食べ物を入れる物なので気分が悪いです。

    7 people found this helpful
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Product Summary: Miyoshi Seisakujyo GEL-COOL Gel Cool Square Ice Pack One-Piece Square Lunch Box, Large, Berry Blue, 7.0 x 3.4 x 2.4 inches (17.8 x 8.7 x 6 cm), 16.9 fl oz (500 ml), 1 Tier, Bento Box, For Women, Men

From 三好製作所

3.9 out of 5 stars, 115 ratings

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One-time purchase: USD 14.66 11% Savings

List Price: USD 16.55

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About this Item

  • The "GEL-COOL" series contains a cooling gel seal inside the lid. Freeze time overnight in an average freezer Once you fill your morning meal, simply set the frozen lid. Remove the lid and put it in the microwave. Safe and delicious to eat
  • Product Size: Approx. 7.0 x 3.4 x 2.4 inches (17.8
  • Capacity: Approx. 16.9 fl oz (500 ml); Product Weight: 0.6 lbs (
  • Material: Main unit and partition: Polypropylene; Insulated lid: ABS resin; Inner lid: SEBS resin thermoplastic elastomer; Rubber band: Rayon, polyester, rubber. *Main unit and partition only are microwave and dishwasher safe
  • This product is a genuine product from the GEL-COOL manufacturer. ]

Product description

Country of Manufacture: Japan. This product is a genuine product from the manufacturer. Beware of imitation products. "GEL-COOL" combines an integrated ice pack and lid. It was born because of her love to eat lunch to her child without worrying about food poisoning in the summer." COOLER, MORE DELICIOUS! Innovative one-piece lid and ice pack construction Fill with rice at 8 in the morning and maintain a temperature of 15 degrees even after 12 hours after 4 hours. The ice pack will not freeze out of the crunchy curl. Refrigerant is contained inside the lid so each lid can be frozen in the freezer

Options Available

Color

  • oyster gray
  • berry blue
  • macaron pink
  • macaron blue
  • white (milk white)
  • mojito green
  • yellow (lemon yellow)

Style

  • S 220ml
  • M 400ml
  • L 500ml
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