1 / 7WORLD-BIO Ice Pack, Slim Reusable Lunch Box Packs
WORLD-BIO Ice Pack is a set of slim, reusable cold packs listed for lunch boxes, cooler bags and outings. The listing says to soak the dry sheet in water for 3–5 minutes, then freeze the packs for 6–10 hours, with overnight freezing suggested for next-day use.
At a glance
- The listing describes four slim, reusable packs for food containers, lunch bags and coolers.
- The listed size is 6” x 4” x 0.7”, intended to take up less room in a packed lunch bag.
- Activation instructions call for soaking in water before freezing. The listing recommends overnight freezing for next-day use.
Often bought together
Pros and cons
Pros
- Four packs are claimed, allowing packs to be placed with more than one lunch container or cooler load.
- The slim listed dimensions suit buyers trying to save space in lunch bags and small coolers.
- Reusable, freezable design is presented for everyday lunches as well as picnics, camping and road trips.
Technical specifications
13 specifications| Brand | WORLD-BIO |
|---|---|
| Model | Ice Pack |
| Material listed | Polyester Blend |
|---|
| Listed size | (6” x 4” x 0.7”) |
|---|---|
| Colour and size | Navy Blue (6” x 4” x 0.7”) |
| Capacity | 100 Grams |
|---|---|
| Shell type | Soft |
| Pattern | Solid |
| Container type | Bag |
| Insulation material type | Polyester |
| Additional features | Freezable, Lightweight, Microwaveable |
|---|---|
| Recommended uses | Lunch boxes, Lunch bags, Coolers, Picnic baskets, Outdoor camping, Road trips, Shipping perishable items |
| Dimensions | 1.8D x 10.2W x 1.8H centimetres |
What to know before buying
Listing details to confirm
The listing claims four packs and gives a size in inches, while another dimensions field states 1.8D x 10.2W x 1.8H centimetres. It also lists 100 Grams as capacity without clarifying whether this applies per pack or to the set. Confirm the size and capacity interpretation before buying. Follow the stated soak-and-freeze preparation, including the 6–10-hour freeze time.
What’s in the box
Included- 4 ice packs
Who is it for?
A good fit for
- People who want compact reusable packs for lunch boxes, lunch bags or bento containers.
- Buyers packing a small cooler for picnics, camping or road trips.
Less suited to
- Buyers who need a stated cooling-duration guarantee, as the listing gives no specific number of hours.
- Anyone looking for a clearly specified set weight or unambiguous metric dimensions.

Customer reviews on Amazon
- 5 stars
79% 79% - 4 stars
9% 9% - 3 stars
3% 3% - 2 stars
0% 0% - 1 star
9% 9%
No written customer feedback is supplied. Aggregate ratings lean towards the highest star category but also include one-star ratings, so they do not establish how the packs perform or explain differing experiences. For buyers choosing these for compact lunch storage, confirm the listed size and preparation instructions rather than treating the ratings as proof of cooling duration.
Frequently asked questions
How do you prepare these ice packs?
The listing says to soak the dry sheet in water for 3–5 minutes, then freeze for 6–10 hours. It suggests freezing overnight before next-day use.
How many packs are listed?
The product details state four packs, and the feature text also claims a set of four. Check the selected listing for the package quantity.
What size are the packs?
The listing gives 6” x 4” x 0.7” and separately states 1.8D x 10.2W x 1.8H centimetres. These dimensions do not align, so confirm the intended size before purchase.
Can they be used in a microwave?
Microwaveable is listed as an additional feature, but no heating directions or limits are provided. Confirm the product instructions before applying heat.

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