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We are commitment to offer the competitive price ,outstanding products quality, as well as fast delivery for waterproof boat backpack,waterproof fishing backpack,waterproof tackle backpack,kayak fishing backpack,marine waterproof backpack, With our rules of " small business track record, partner trust and mutual benefit", welcome all of you to definitely work together , expand with each other.
waterproof boat backpack, We have been in operation for more than 10 years. We have been dedicated to quality products and solutions and consumer support. We currently own 27 product utility and design patents. We invite you to visit our company for a personalized tour and advanced business guidance.

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  • 25L Waterproof Roll Top Dry Backpack with Air Valve

    25L Waterproof Roll Top Dry Backpack with Air Valve

    Sealock supplies the 25L Waterproof Roll Top Dry Backpack with Air Valve, an IPX8 fully submersible pack in welded 420D TPU laminated nylon with a roll-top closure, a compression air-release valve and dual waterproof side zip pockets. It keeps gear dry on the water, packs down small and carries on a reflective, adjustable harness. OEM/ODM TPU dry bag manufacturer, MOQ 300, FOB Guangdong.
  • 20L Waterproof Travel Duffel Bag with Airtight Zipper (IPX7)

    20L Waterproof Travel Duffel Bag with Airtight Zipper (IPX7)

    Sealock supplies the SL-C878 Waterproof Travel Duffel Bag with Airtight Zipper, a welded 840D TPU duffel rated IPX7 with a genuine airtight waterproof zipper, a front waterproof zip pocket, an internal zip pocket, a reinforced base board, twin webbing handles and a detachable padded shoulder strap. 41.5 × 25 × 19 cm, 0.75 kg. OEM/ODM from MOQ 300, FOB Guangdong.
  • Lightweight Waterproof Hiking Backpack 40L

    Lightweight Waterproof Hiking Backpack 40L

    Defy the elements with the ultimate hybrid lightweight waterproof hiking backpack 40L. Engineered specifically for demanding single-track routes and unpredictable wilderness environments, this high-capacity hiking backpack seamlessly bridges the gap between a high-alpine trekking backpack and an uncompromising marine-grade dry pack. By fusing an ultra-lightweight, highly flexible 210D ripstop grid nylon chassis with a mechanical airtight pressure zipper, we have built a premium backpacking pack that guarantees 100% dry equipment storage without sacrificing the agility required for rapid mountain ascents. It stands as the benchmark waterproof trekking backpack for international outdoor gear distributors and professional adventurers alike.
  • SL-E1176 16L Slim Water-Resistant Laptop Backpack with YKK Dual-Slider Zipper

    SL-E1176 16L Slim Water-Resistant Laptop Backpack with YKK Dual-Slider Zipper

    SL-E1176 16L Slim Water-Resistant Laptop Backpack with YKK Dual-Slider Zipper measuring 28 × 12 × 47 cm, produced on our in-house sewn line from PU-coated polyester. The arced main opening runs a YKK dual-slider laminated zipper, a concealed vertical pocket sits flush in the front panel, and a soft hidden side pocket takes a phone without interrupting the silhouette. Diamond-mesh padded back panel, S-curve shoulder straps, bar-tacked top handle. Six stock colours — yellow, pink, red, light green, silver and purple — with custom Pantone available. MOQ 300 pcs, FOB Guangdong.
  • 35L Roll Top Waterproof Backpack for Hiking and Kayaking

    35L Roll Top Waterproof Backpack for Hiking and Kayaking

    The 35L Roll Top Waterproof Backpack for Hiking and Kayaking is built by Sealock, a waterproof dry bag factory and OEM supplier, from 420D TPU with RF-welded seams, an IPX7 roll-top seal and an integrated air-release valve. It packs down through the air valve for kayaking and rafting, and carries on a padded ergonomic harness with a load-bearing waist belt — ready for custom and bulk orders.
  • Camouflage Hiking Backpack 30Liter

    Camouflage Hiking Backpack 30Liter

    Professional camouflage hiking Backpack 30Liter, using TPU composite environmental protection material 420D, super tensile force and durability, seamless joint technology makes the bag more waterproof and airtight, you can use it in water, boat, mud, protection Your gear is safe.
  • Related Blog
  • Reviews

  • How to Close and Use a Roll-Top Dry Bag

    Sealock has manufactured roll-top dry bags for outdoor brands and retailers for over 20 years, and the single most common cause of a "leaking" dry bag we see in returns is not the bag. It is the way it was closed. This guide explains how to close a roll-top dry bag properly, how to pack and use it, how to clean and store it, and how big a 5 litre dry bag really is. The last section is for brands and retailers, and covers the instruction card that turns these steps into fewer returns and better reviews.

  • What Drives the Cost of a Waterproof Bag: A Buyer's Breakdown

    Sealock manufactures waterproof bags for OEM and wholesale buyers from factories in China and Vietnam, with an MOQ of 300 pieces and samples in 7–15 days. Buyers comparing quotes usually treat an FOB price as a single number. It is not — it is a stack of separate cost blocks, each moving on its own curve, and knowing which block a price difference came from is what separates a genuine saving from a specification that has been quietly downgraded. This is how to read a waterproof bag quote.

  • Engineering Marine-Grade Deck Bags: Saltwater Hydrolysis and Dynamic Shear Loads

    Specifying a waterproof deck bag for marine or tactical use means far more than ordering a bag with a roll-top closure. From Polyether TPU selection and ASTM G154 UV weathering compliance to RF-welded D-ring patch strength and dynamic hydrostatic pressure resistance—every engineering decision determines whether your product survives a season of saltwater exposure or delaminates within 90 days. Here's what procurement teams need to demand from any OEM manufacturing partner before signing a production order.

  • Cheap foldable Dry Surf Bucket Bag

    A simple fabric bucket that has been designed to be rigid enough to stand on its own, yet pliable enough to be folded for easy storage. Whether you're at home or you're heading on a weekend camping trip, this folding bucket is an accessory you'll wish you'd bought sooner. Made from durable materials the side panels collapse inwards to the base to reduce the volume, meaning it can be stored away quickly and easily.

  • ​Sealock Airtight Waterproof Backpack from Vietnam Supplier

    Sealock waterproof airtight backpack uses high density nylon and thick TPU laminate material, which is puncture resistant and wear resistant.

  • Custom Waterproof Backpacks for Outdoor Brands

    Sealock builds custom waterproof backpacks for outdoor brands, importers, and private label programmes — packs designed around a brand's market rather than pulled from a catalogue. A custom waterproof backpack is worth the investment only if it does something a generic pack does not: fit a defined customer, solve a real problem, and carry the brand's identity. This is how an outdoor brand turns customization into a product that actually differentiates, from defining the buyer to locking the specification.

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