The top opens as a full flip-top, giving you a genuinely wide mouth instead of a narrow slot. That means you can drop in a bag of ice, stand full bottles upright, fit a lunch box flat, and reach the bottom without unpacking everything on top. Just as important for a cooler that goes to the beach and the boat, the wide opening makes it quick to empty melt-water and rinse the interior clean at the end of the day.
Inside is a one-piece food-grade TPU airtight liner with no sewn seams or needle holes — the reason this cooler is 100% leakproof even when it is full of melted ice-water and laid on its side in a trunk.
The liner is FDA food-grade and safe for direct contact with food, ice and drinks, and its light interior makes it easy to see and clean. We confirm the seal on every unit with a full water-immersion test, submerging the closed cooler for more than two hours and checking that the inside stays dry.
Between the shell and liner sits a 20–25 mm layer of high-density closed-cell XPE foam, a non-absorbent insulation that blocks outside heat and does not deform with use. With the airtight zipper sealing the top, Waterproof Soft Cooler Bag 15L–20L TPU Insulated Ice Chest with Airtight Zipper holds ice and chilled drinks for 48+ hours in normal outdoor conditions — enough to carry a weekend of food and drinks through a campsite or a fishing trip without a re-ice run.
The body is double-laminated 840D TPU composite fabric with a matte micro-texture — strongly tear-, abrasion- and puncture-resistant, mildew-proof and easy to wipe down. The base is a reinforced 1680D TPU bottom that gives the bag its upright shape and takes the abrasion of sand, gravel and wet ground that a cooler is set on all day. It is the combination that lets one bag survive seasons of beach, boat and campsite use.
The carry details are built to the same standard as the seal:
| Specification Item | Factory Standard Parameters |
|---|---|
| Brand | SEALOCK |
| Model No. | SL-I032 |
| Product Name | Waterproof Soft Cooler Bag |
| Product Type | Soft Cooler |
| Capacity | 12L / 15L / 20L |
| Waterproof Rating | IPX7 |
| Ice Retention | 48+ hours |
| Closure Type | Airtight Waterproof Zipper |
| Construction | High-Frequency Welded Seamless |
| Carrying | Heavy-Duty Handle + Detachable Shoulder Strap |
| Color | White, Black, Gray, Blue, Khaki, Orange (Custom available) |
| Place of Origin | Guangdong, China |
| MOQ | 300 pcs |
| Sample Lead Time | 7–15 days |
| Production Lead Time | 30–45 days |
| OEM / ODM | Supported (incl. full custom) |
| Component Layer | Technical Specification |
|---|---|
| Outer Material | 840D TPU Laminated Waterproof Fabric (matte micro-texture) |
| Insulation Layer | 20–25 mm High-Density Closed-Cell XPE Foam |
| Inner Liner | Food-Grade TPU Airtight Membrane (FDA food-grade) |
| Bottom Material | Reinforced 1680D TPU Base |
| Zipper Type | Airtight Waterproof Zipper (large pull tab) |
| Welding | High-Frequency 27.12 MHz Welded Seamless Construction |
| Hardware | POM Swivel Clips + D-Rings (seawater-resistant) |
| Capacity Classification | Dimensions (L × W × H) |
|---|---|
| 12L | 30 × 22 × 25 cm |
| 15L | 32 × 24 × 28 cm |
| 20L | 36 × 26 × 30 cm |
Brand it your way: silk-screen, heat-transfer, digital and UV printing, embossed or debossed logos, and rubber patch logos.
A go-everywhere cooler tuned for the trips where it rides along and gets opened all day:
Each Waterproof Soft Cooler Bag 15L–20L TPU Insulated Ice Chest with Airtight Zipper starts with cut 840D TPU laminated fabric, the closed-cell XPE insulation and a reinforced 1680D base. Every seam is joined by high-frequency 27.12 MHz welding, which fuses the material at a molecular level into an airtight, seamless build with no needle holes, and the food-grade liner is welded in as one piece. We install the airtight zipper, the four-point welded handle, the detachable strap and the POM hardware. Before a batch ships, we run a full water-immersion test — submerging each sealed cooler for more than two hours to confirm it stays dry inside — plus an ice-retention check against the 48-hour target and a pull-test on the handle, strap and hooks.
Sealock builds the SL-I032 for OEM and ODM cooler brands from an MOQ of 300 pcs, FOB Guangdong, with samples in 7–15 days and production in 30–45 days. Choose any of the six stock colours or your custom colour, add your logo in the printing methods above, and select sizes across 12L–20L. Beyond colour and logo, we offer full ground-up custom development — bring a sketch, sample or target spec and our China base develops the cooler from scratch as an original product. Ground-up development needs extra lead time, so share your launch date and we will schedule sampling.
Address
#801, E27 , No.179 Dongshen Rd, Fenggang Town, Dongguan City, Guangdong Province, China. Postcode: 523787
Lô B11, B12, B13, B14, đường số 1, KCN Việt Hương 2, An Tây, Bến Cát, Bình Dương, Việt Nam
Lot E6C, Viet Huong 2 industrial Park, An Tay commune, Ben Cat Distric, Binh Duong province
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