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  • Compact Waterproof Fishing Sling Bag with Airtight Zipper (SL-E868A)

    Compact Waterproof Fishing Sling Bag with Airtight Zipper (SL-E868A)

    Sealock supplies the Compact Waterproof Fishing Sling Bag with Airtight Zipper, model SL-E868A, a welded 840D TPU sling pack sealed by an airtight waterproof zipper with a T-grip pull, plus a front waterproof zip pocket, side ladder lash straps, D-rings, a patch panel and an internal mesh zip pocket. 23 × 15.5 × 45 cm. BSCI / ISO9001 / Sedex, MOQ 500, FOB Shenzhen.
  • 22L Waterproof Laptop Backpack — RF Welded, IPX6

    22L Waterproof Laptop Backpack — RF Welded, IPX6

    22L Waterproof Laptop Backpack — RF Welded, IPX6, measuring 30.5 × 14.5 × 50 cm and weighing 0.85 kg. The shell is welded rather than stitched, closed with waterproof zippers on both the arced main opening and the vertical front pocket, and fitted with a padded 16-inch laptop sleeve, a pressure-relief valve, welded lash points, a stretch side pocket and a ventilated block-pad back panel. Stock colour khaki, custom Pantone available. MOQ 300 pcs, FOB Guangdong.
  • Universal IPX8 Waterproof Phone Pouch with Camera Window

    Universal IPX8 Waterproof Phone Pouch with Camera Window

    Sealock supplies the Universal IPX8 Waterproof Phone Pouch with Camera Window, model SL-A064, a heat-sealed PVC pouch rated IPX8 to 30 m with a full front touch window AND an independent rear camera window — so you can shoot photos and video underwater without taking the phone out. Dual ABS slide locks, silicone seal, adjustable neck lanyard, fits phones up to 7.0". OEM/ODM from MOQ 300, FOB Guangdong.
  • 45L / 55L / 65L IPX8 Waterproof Caving Backpack with Natural Rubber Seal

    45L / 55L / 65L IPX8 Waterproof Caving Backpack with Natural Rubber Seal

    Sealock supplies the SL-J033 Waterproof Caving Backpack in 45L / 55L / 65L, a seamlessly welded TPU-and-420D-nylon pack rated IPX8 that seals with a natural rubber closure strip, built for caving, canyoning and river tracing with a heavy-duty abrasion base, reflective trim, internal mesh pocket and a full padded harness with hip belt. A designated partner supplier to Exploration China. OEM/ODM from MOQ 300,* FOB Guangdong.
  • 25L Waterproof Backpack with Dual-Slider Airtight Zipper (IPX7)

    25L Waterproof Backpack with Dual-Slider Airtight Zipper (IPX7)

    Sealock supplies the 25L Waterproof Backpack with Dual-Slider Airtight Zipper, a welded daypack rated IPX7 that seals with a two-way airtight waterproof zipper across the curved top, plus a front waterproof zip pocket, lash webbing, side pockets, a channelled padded back and a sternum strap. Four colourways including marsh-grass and grey camo. OEM/ODM from MOQ 300, FOB Guangdong.
  • Waterproof Dry Backpack with Airtight Zipper and Air Valve for Kayaking

    Waterproof Dry Backpack with Airtight Zipper and Air Valve for Kayaking

    Sealock supplies Waterproof Dry Backpack with Airtight Zipper and Air Valve for Kayaking, a tall welded dry backpack sealed by an airtight zipper and fold-over top, with an inflate/deflate air valve that lets it float or compress, plus a removable convertible harness. Rated IPX7,* it keeps gear dry through submersion and carries as a backpack or tote. OEM/ODM and wholesale from MOQ 300, FOB Guangdong.
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  • Waterproof Bag Packaging and Retail Presentation for OEM Buyers

    Sealock produces waterproof bags for OEM and wholesale buyers with packaging specified to the sales channel, from plain export cartons through to retail-ready and marketplace-compliant presentation. Packaging is the part of a specification buyers leave until last and then regret, because it determines whether goods can be sold on arrival — or whether they sit in a rejection queue while someone repacks them. This covers what to specify, what each channel requires, and what changed in 2026.

  • Are waterproof backpacks really waterproof?

    ​Waterproof backpacks are designed to resist the penetration of water and keep the contents inside dry even in wet conditions. However, the degree of waterproofing can vary among different backpacks, and it's crucial to understand the distinctions in terminology and testing standards:

  • Lightweight Waterproof Backpack: Material Choices and Weight Considerations

    Sealock manufactures the lightweight waterproof backpack for wholesale and OEM buyers worldwide, and the brief is harder than it sounds: a pack has to keep water out and stay light enough to carry all day. Those two goals pull against each other, because the materials that seal best are often the heaviest. The sections below break down the material options, where the grams actually hide, and what gear testers report after real days on the trail — so a buyer can specify the right balance for a given product line.

  • Motorcycle Waterproof Bag Manufacturer for Adventure Brands

    Sealock manufactures motorcycle waterproof bags for adventure and touring brands, importers, and OEM programmes from factories in China and Vietnam. Motorcycle luggage is the hardest category in the waterproof range to specify correctly, because the bag is not simply carried — it is mounted to a vibrating machine, driven through rain at highway speed, positioned near an exhaust hot enough to melt fabric, and it changes how the motorcycle handles. This sets out what an ADV programme has to get right and how those requirements translate into construction.

  • Waterproof Dry Bag Production Equipment & Manufacturing Line

    A reliable waterproof dry bag is not created by material alone. It depends on production equipment, manufacturing precision, and process control across every stage of production.As a professional waterproof dry bag manufacturer, we operate a complete production line designed for OEM and wholesale orders, ensuring consistent quality from raw material to final inspection.

  • 35L Waterproof Hiking Backpack: Balancing Capacity and Comfort

    Sealock manufactures the 35L waterproof hiking backpack for wholesale and OEM buyers worldwide, and 35 liters is where a pack stops being a daypack and starts carrying real loads. That extra volume only helps if the pack stays comfortable once it is full — a 35L bag is heavy enough that a poor carry system turns a long day painful. The sections below set out what 35L is for and how the load is kept off the shoulders and onto the hips.

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