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China Dry Bag Waterproof Manufacturers, Suppliers, Factory

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Dry Bag Waterproof, We have now a dedicated and aggressive sales team, and many branches, catering to our main customers. We have been looking for long-term business partnerships, and ensure our suppliers that they will surely benefit in both short and long run.

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  • Multi-Purpose Waterproof Pouch with Dual PVC Seal (Rain & Splash Protection)

    Multi-Purpose Waterproof Pouch with Dual PVC Seal (Rain & Splash Protection)

    Sealock supplies the Multi-Purpose Waterproof Pouch with Dual PVC Seal, a lightweight TPU dry pouch that protects a phone, documents, wallet or camera from rain and splash. A fold-over flap with a double PVC sealing strip keeps out moderate rain and spray, with a clip ring for hands-free carry. Two sizes (small 19 × 23 cm, large 27 × 34 cm), three colours. OEM/ODM from MOQ 300, FOB Guangdong.
  • Wateproof Duffel Bag with 60 Liters Yellow

    Wateproof Duffel Bag with 60 Liters Yellow

    Wateproof Duffel Bag with 60 Liters Yellow is made of PVC mesh 500D material, the whole bag body is waterproof and dustproof, seamless joint and waterproof zipper to make the bag mouth waterproof, there are adjustable strap buckles on both sides of the bag, and a shoulder strap , There is a device that can deflate and inflate in front of the bag to adjust the air capacity in the bag. The capacity of the bag body can store multiple sets of clothes, shoes, and important electronic equipment, etc. If you are camping outdoors, boating or Sailing This waterproof bag is perfect for your needs and will help you keep your belongings dry.
  • Outdoor Waterproof Bike Frame Bag

    Outdoor Waterproof Bike Frame Bag

    Introducing our versatile outdoor waterproof bike frame bag, specifically designed for outdoor cycling enthusiasts. This compact yet spacious triangle frame bag securely attaches to your bicycle, providing a weather-resistant storage solution for all your essential gear. Whether you're tackling rugged trails or cruising through city streets, our bag keeps your valuables safe and dry.
  • Waterproof Dry Bag with Phone Window 10Liter to 20Liter

    Waterproof Dry Bag with Phone Window 10Liter to 20Liter

    Waterproof Dry Bag with Phone Window 10Liter to 20Liter is a round tube-shaped waterproof dry bag, used for outdoor rafting, boating, canoeing, can store clothes and important electronic items, there is a variety of color matching, multiple capacity options, the round tube-shaped waterproof dry bag has A very important feature, there is a transparent pocket on the front side to store a mobile phone, you can check the phone information during exercise, make and receive satellite calls, etc. The pocket has a waterproof membrane to make the bag more waterproof.
  • 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.
  • Soft Cooler Waterproof 24 Cans Leak-Proof backpack Soft Pack

    Soft Cooler Waterproof 24 Cans Leak-Proof backpack Soft Pack

    Sealock Soft Cooler Waterproof 24 Cans Leak-Proof backpack Soft Pack fron China factory, made of 840D TPU and environmentally friendly thermal insulation cotton, can store 24 cans, and the heat preservation time is up to 48 hours. It can be selected for outdoor picnics and play. The fabric is waterproof for storage and ice cubes are kept sealed. , convenient for you to use, the overall use of an airtight waterproof zipper makes the whole bag more waterproof.
  • Related Blog
  • Reviews

  • ​40L Waterproof Duffel Bag: Capacity Guide for Weekend Adventures

    Sealock manufactures the 40L waterproof duffel bag for wholesale and OEM buyers worldwide, and 40 liters is the size a weekend keeps coming back to: enough for two or three days of kit without tipping into a bag too large to carry by hand or stow in a boot. This guide sets out what 40L holds, how it compares to the sizes on either side, and what separates a duffel that survives a wet weekend from one that only looks the part.

  • 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.

  • The Science of Cold-Flex Durability: 1000D Ballistic TPU and Seam Integrity in Sub-Zero Scenarios

    Written exclusively for tactical Search and Rescue (SAR) and extreme maritime procurement directors, this technical brief dissects the underlying polymer degradation and interfacial failure mechanisms of 1000D Ballistic TPU dry bags deployed in sub-zero environments. Bypassing commercial marketing narratives, it utilizes rigid process-tolerance language to evaluate the glass transition temperature (Tg) variations between polyester-based and polyether-based TPU coatings. The analysis isolates critical stress concentrations at high-frequency weld edge transitions caused by minute pneumatic pressure shifts across brass dies, providing an actionable factory audit playbook backed by ASTM G154 accelerated weathering and low-temperature flex validation metrics.

  • 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.

  • Wholesale Bikepacking Bags: Custom Waterproof Bike Frame & Saddle Bags Manufacturer

    For international bicycle accessory brands, outdoor retail chains, and volume importers across Europe, North America, and Australia, the bikepacking and gravel cycling boom has fundamentally altered consumer expectations. In 2026, premium buyers are no longer ordering loose, stitched canvas panniers that sag and leak. To maintain a competitive retail shelf space, your inventory must showcase specialized material engineering, high-frequency seam fusion, and rock-solid mounting stability designed for extreme trail conditions.

  • What is the difference between a casual waterproof folding backpack and an ordinary backpack?

    There are significant differences between casual waterproof folding backpacks and ordinary backpacks in many aspects. These differences are mainly reflected in design features, functionality and usage scenarios. Here's a detailed comparison:

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