How do they seal at the top? Zipper? Snaps? Is the sealing mechanism durable? Will the seal leak?

Snaps. All along the hard plastic top and handle. No, there are small gaps between snaps in which I would think liquid would leak through. It does not seal like a ziploc bag.

What are the dimensions of the large bag?

I just measured one of mine, the grocery large sized, and it was 16 1/2in by 16 1/2 inch. Had them for years, and unless over 90 out, we dont bother with a cold pack in it, but dont drive home with it in a hot trunk. They are made well, had them over 10 years. Made in Germany.

What's the actual size? Says 18x6x1.5, but in the pictures they don't look to be that size

What the measured for me was 15x11.5x6. The 6 being the width across the bottom when opened.

Would this work to keep hot dogs warm for my child’s lunch?

Yes, but the bags are rather large for a lunch bag. I don’t know if they come in different sizes.

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PINSUKO Insulated Bag, Lightweight, Waterproof, Reusable, 100% Recyclable, Food Safe, Holds Up to 30 lbs

PINSUKO Insulated Bag, Lightweight, Waterproof, Reusable, 100% Recyclable, Food Safe, Holds Up to 30 lbs

Product ID: 36759391

Details

Brand
Hot Cold Bag
Capacity
30 Liters
Color
Red/Blue
Item Weight
3.52 ounces
Material
Polyethylene
Model Name
Thermal

👜Lightweight & folds flat

♻️100% recyclable & reusable

❄️Keeps items hot/cold for hours

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VT9452

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

♻️ Stay cool, stay hot, stay ahead—carry your lifestyle with PINSUKO!

THERMAL MASTERY - Maintain your meals at the perfect temp for hours—hot or cold, no compromises.
HEAVY DUTY CAPACITY - Sturdy enough to hold up to 30 lbs—your ultimate grocery or travel companion.
ULTRA LIGHT COMPACT - Weighs just 3.5 oz and folds flat for effortless storage and on-the-go convenience.
WATERPROOF WASHABLE - Durable polyethylene construction keeps moisture out and cleans up with ease.
ECO CHIC SUSTAINABILITY - 100% recyclable, food-safe materials with non-toxic, water-based inks—style meets responsibility.

The PINSUKO Insulated Bag is a lightweight, waterproof, and reusable thermal carrier designed to keep food and beverages hot or cold for hours. Made from 100% recyclable, food-safe polyethylene with non-toxic inks, it supports eco-conscious lifestyles. With a spacious 30-liter capacity and the ability to hold up to 30 lbs, it’s perfect for grocery shopping, travel, and outdoor activities. Its fold-flat design ensures easy storage, making it a versatile and sustainable alternative to bulky coolers.

Specifications

ASIN	B01H0HXFKC
Additional Features	Waterproof
Best Sellers Rank	#19,625 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #280 in Reusable Lunch Bags
Brand	Hot Cold Bag
Brand Name	Hot Cold Bag
Capacity	30 Liters
Chamber Depth	18 Inches
Chamber Height	18 Inches
Color	Red/Blue
Container Type	Bag
Customer Reviews	4.4 out of 5 stars 2,256 Reviews
Global Trade Identification Number	20893669001655, 50893669001021
Insulation Material Type	Polyethylene
Item Type Name	Cooler
Item Weight	0.22 Pounds
Manufacturer	American Bag Company
Manufacturer Part Number	118-100PK-5IP
Material	Polyethylene (PE)
Material Type	Polyethylene (PE)
Model Name	Thermal
Model Number	\| Insulated
Package Information	Bag
Pattern	Solid
Product Care Instructions	Hand Wash
Recommended Uses For Product	Beach, Travel
Size	Grocery Size
Warranty Description	No Warranty

Reviews

B**E

20.04.2026

J**E

28.03.2026

R**W

12.04.2026

J**I

18.06.2024

C**X

28.07.2024

K**P

23.07.2016

J**R

9.08.2025

A**R

29.04.2025

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