Hulongo Waterproof Cooler Backpack 30L
- Capacity: 31.7 quarts
- Insulation Material Type: Polystyrene Foam
- Material Type: Polyester
- Container Type: Bag
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A capable everyday cooler backpack for shorter outings, with a 12-hour cold claim that reads honest rather than inflated.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0CC93FQN8Category: Camping Coolers
Colors Available
Need a different one? Pick on Amazon →
Overview
At 30 liters, Hulongo's cooler backpack turns a soft cooler into a backpack, with two insulated compartments separating drinks from food and padded straps for the carry.
Hulongo lists 12 hours of retention from 8 mm foam insulation and a silver PEVA seal, a more modest claim than some rival soft coolers advertise. The shell is high-density nylon with a PU coating for water resistance, and the liner uses a hot-pressed seam construction with additional horizontal zipper seals aimed at reducing leaks.
- About 30-liter capacity, roughly 35 standard cans
- Two insulated compartments plus multiple pockets
- Water-resistant nylon shell with PU coating
- Padded adjustable straps for backpack carry
Who it's for
Suited to picnics, beach trips, and grocery runs where carrying weight on the back matters more than raw capacity. Buyers wanting an all-day, 20-plus hour cold hold should look at a model that states a longer retention window, since Hulongo's own spec caps out at 12 hours.
Pros and cons
- Two insulated compartments for drinks and food
- Padded adjustable straps
- Water-resistant nylon shell with PU coating
- Bottle opener included
- 12-hour retention is shorter than rival claims
- Zipper remains the main leak risk despite added sealing
Performance notes
Two insulated compartments split cold drinks from dry snacks, and a front pocket plus two side pockets hold a phone, wallet, or other small items, with a bottle opener included. The listing measures the bag at 17.7 by 12.2 by 7.9 inches and describes room for around 35 standard cans.
Specifications
| Brand | Hulongo |
|---|---|
| Dimensions & fit | |
| Chamber Depth | 7.9 inches |
| Chamber Height | 17.7 inches |
| Chamber Width | 12.2 inches |
| Item Dimensions D x W x H | 7.9 × 12.2 × 17.7 inches |
| Capacity & performance | |
| Capacity | 31.7 quarts |
| Construction & materials | |
| Insulation Material Type | Polystyrene Foam |
| Material Type | Polyester |
| Color | Gray |
| Included components | |
| Number Of Packs | 1 |
| Included Components | Bottle Opener (1) |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Container Type | Bag |
| Water resistance level | Waterproof |
| Number of Items | 1 |
| Recommended Uses For Product | Boating, Camping, Hiking |
| Pattern | Letter Print |
| Additional Features | Double Deck, Insulated, Leak Proof, Spacious |
| Item Highlight | Men & Women, Leak Proof, for Camping, Beach, Fishing, Picnic, Travel, Outdoor |
Frequently asked questions
How many cans does the Hulongo cooler backpack hold?
Hulongo's product bullet describes room for around 35 standard 330 ml cans in the main compartment, with the listing sized at 30 liters.
How long does the Hulongo cooler keep items cold?
Hulongo rates the 8 mm foam insulation and PEVA seal for up to 12 hours of retention.
Is the Hulongo cooler backpack leak-proof?
The liner uses a hot-pressed seam with extra horizontal zipper sealing, though zippers remain the main point where leaks can occur if the bag tips over.