Sealock manufactures the small cooler tote bag for daily lunch and drinks that wholesale buyers source for office, campus and on-the-go meal programs. Where a weekend cooler only works a few days a year, a lunch tote earns its keep day after day — so the spec that matters is not raw size but a clean, repeatable everyday build. The sections below set out the maker, the construction, the full product parameters, the testing routine, the buying logic, and a lunch-line OEM path, in the order a procurement team actually evaluates them.

Who Makes It: Sealock at a Glance

Sealock is the cooler brand of YiFuLong Outdoor Gear Co., Ltd. The company has done one thing since 2003 — insulated and sealed soft bags — and that focus is what separates a lunch tote built for years of daily use from a giveaway that frays within months. For a buyer, the relevant facts fit on one card:

The dual-country setup is not decoration. Buyers importing into the EU or US can shift orders to the Vietnam plant to soften tariff exposure, while the Dongguan base keeps tooling and sampling fast.

How the Bag Is Built

A lunch tote does a narrow job well: keep one meal and a few drinks cold for half a day, then clean up without a fuss. Sealock reaches that with a shared insulated platform and a choice of closure.

The Insulated Three-Layer Platform

Every Sealock cooler tote, the small one included, sits on the same three-layer structure:

• Outer: a TPU / polyester shell that wipes clean and keeps shape inside a backpack or locker.
• Middle: EPE foam, the layer that does the actual insulating and gives the brand's sealed totes their 8+ hour rating.
• Inner: a food-safe PEVA liner that catches a leaking yogurt and rinses out under a tap.

Closure: Sealing Zipper or Welded Leakproof

Closure is where the lunch range tiers up: a snap-button open top for easy everyday access, and an HF-welded leakproof body when a fully sealed, spill-proof closure is needed. A standard sealing zipper suits sandwiches, fruit and canned drinks. For soups, curries and sauce-heavy meals, Sealock switches to an HF-welded leakproof body that fuses the seams shut, so a tipped container never soaks the rest of what is packed alongside it. That single choice — zipper or welded — is usually the first thing a buyer decides.

The Small Cooler Tote Bag: Full Specifications

Here are the confirmed parameters for the lead model, the Small Cooler Tote Bag, drawn straight from the production datasheet.

Exact external dimensions are confirmed at sampling; the body can be resized on custom orders.

Related Daily-Lunch Models

Where the small tote does not fit a buyer's exact use, four sister models cover the rest of the lunch lineup. All specs are real, pulled from the same datasheet.

A roomier desk-side option with extra compartments is the Lunch Cooler Bag, built on the same insulated base.

Quality Control, Step by Step

On a lunch bag, a defect shows up fast and in front of the end user: a zipper that jams on first use, or a liner that smells after a few days. Sealock's line check is ordered to catch exactly those:

1. Incoming materials — shell, PEVA liner and EPE foam are verified for thickness and food-contact safety before any cutting.
2. Seam integrity — welded or stitched joints are inspected so the tote keeps its form under daily packing.
3. Zipper cycling — the closure is run through repeated open-shut cycles, because a lunch tote is opened more often than any other cooler the factory makes.
4. Leak containment — on welded models, seams are checked to confirm liquids stay put.
5. Liner hygiene — the PEVA interior is confirmed easy-rinse and odor-resistant.
6. Order-level sign-off — an independent inspection clears each batch before it leaves Dongguan or Binh Duong.

Choosing the Right Daily Lunch Cooler

Three decisions settle most lunch specs. Taken in order, they map cleanly onto the models above.

Decision 1 — Meal only, or meal plus drinks?

A single packed meal fits the Portable Lunch Cooler or Insulated Lunch Bag with nothing wasted. Add a couple of bottles or cans and the small cooler tote at roughly a dozen cans is the right call.

Decision 2 — Dry food, or wet?

Dry meals work in Dry meals work in any of the standard totes. The moment soup, curry or a saucy dish is in the rotation, spec the welded leakproof lunch box instead, and keep spills off everything else packed with it.

Decision 3 — What about cleaning?

For a bag used daily, the liner matters more than the strap. Every model here uses wipe-clean, odor-resistant PEVA, so the practical question for a buyer is simply to confirm that liner on the final spec.

OEM & ODM: Building a Private-Label Lunch Line

A daily lunch tote is one of the easiest categories to private-label, which is why retailers, promo agencies and brand sellers start their cooler ranges here. Sealock's setup is built for that entry point rather than for large industrial runs only.

What a buyer can change

• Closure as a product decision: ship the line as a standard zipper tote, a welded leakproof box, or both as good/better tiers.
• Color matching & logo: custom TPU/fabric colors plus printed branding, so a lunch range stays on-palette with the rest of a catalog.
• Material and insulation: swap shell (TPU, polyester, nylon) and foam thickness to hit a target price or weight.
• Size and accessories: resize the body, add pockets, handles or a strap.

The terms that make it workable

• MOQ 300 pcs per design — a low enough entry for a first private-label run, negotiable on custom builds.
• Sampling 7–15 days; production 30–45 days, FOB Guangdong.
• Welded or sewn across three HF-welding factories, so a program can scale without changing supplier.
• Retail-ready packing: 1 pc per OPP bag plus carton, suitable straight onto a shelf.
• China or Vietnam origin on the same spec, letting a buyer route around tariffs or chase shorter lead times.

FAQ: Small Cooler Tote Bag for Daily Lunch and Drinks

Q: How much fits in a small cooler tote bag for daily lunch and drinks?

A: A small cooler tote bag for daily lunch and drinks is built for one person — about a dozen cans, or a packed meal with a couple of bottles. The Sealock small tote keeps that footprint compact enough to carry one-handed to a desk or locker.

Q: What are the exact materials and specs of the small lunch cooler?

A: The Sealock small cooler tote uses a TPU/polyester shell, EPE foam insulation, and a food-safe PEVA liner, closed with a snap-button open top, MOQ 300 pcs, packed 1 pc per OPP bag and carton. Exact dimensions are confirmed at sampling since the body can be resized on custom orders.

Q: Is the small cooler tote bag leakproof for soups and sauces?

A: The standard zippered tote is made for dry and canned items. For wet meals, Sealock's HF-welded Leakproof Lunch Box Cooler seals the seams shut, so buyers who pack soup daily should choose that welded model rather than the standard tote.

Q: How long does it keep food and drinks cold?

A: The Sealock small cooler tote holds cold for up to 24 hours thanks to its EPE foam insulation, which covers a full day out. For meals that also need a fully sealed, leakproof closure, the brand's HF-welded sister models add that seal; an ice pack extends either option.

Q: What does it take to order a custom-branded lunch tote from Sealock?

A: The entry MOQ is 300 pcs per design, with samples in 7–15 days and production in 30–45 days, FOB Guangdong. Color, logo, closure, size and China-or-Vietnam origin are all set during customization.