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China Waterproof Dry Backpack Manufacturers, Suppliers, Factory

Our corporation puts emphasis about the administration, the introduction of talented staff, plus the construction of team building, attempting hard to improve the quality and liability consciousness of team members. Our organization successfully attained IS9001 Certification and European CE Certification of Waterproof Dry Backpack,Dry Bag,Waterproof Dry Bag,Waterproof Dry Tube Bag,Tube Dry Bag, We have been sincerely wanting forward to cooperate with consumers all over the earth. We feel we can easily satisfy with you. We also warmly welcome buyers to visit our manufacturing unit and purchase our products and solutions.
Waterproof Dry Backpack, Our company always committed to meet your quality demand, price points and sales target. Warmly welcome you open the boundaries of communication. It is our great pleasure to service you if you want a trusted supplier and value information.

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  • Roll-Top Waterproof Backpack with Full Wrap-Around Zip Opening

    Roll-Top Waterproof Backpack with Full Wrap-Around Zip Opening

    Sealock supplies the Roll-Top Waterproof Backpack with Full Wrap-Around Zip Opening, a welded dry backpack that seals with both a roll-top and a waterproof zipper running around the body — so it closes like a dry bag but opens flat like a suitcase. It adds a welded front zip pocket, side mesh pockets and a breathable padded harness. OEM/ODM and wholesale from MOQ 300, FOB Guangdong.
  • Waterproof Fishing Sling Bag with Airtight Zipper for Lure Fishing

    Waterproof Fishing Sling Bag with Airtight Zipper for Lure Fishing

    Sealock supplies the Waterproof Fishing Sling Bag with Airtight Zipper for Lure Fishing, a welded PVC sling pack rated IPX7 that seals with a genuine airtight waterproof zipper, plus a front waterproof zip pocket, moulded side attachment plates for rods and tools, a ventilated mesh back and a padded single strap with stabilizer. 22 × 9 × 42 cm, three colours. OEM/ODM from MOQ 300, FOB Guangdong.
  • 20L Roll Top Waterproof Backpack with Laptop Sleeve for Commuting and Travel

    20L Roll Top Waterproof Backpack with Laptop Sleeve for Commuting and Travel

    Sealock supplies the 20L Roll Top Waterproof Backpack with Laptop Sleeve for Commuting and Travel, a welded 500D PVC pack rated IPX6 with a roll-top and side-compression buckles. It keeps gear dry through heavy rain, adds a laptop sleeve, a front splash pocket, an internal organizer and side bottle pockets, and carries on breathable mesh straps. OEM/ODM and wholesale from MOQ 300, FOB Guangdong.
  • SL-P1133 Waterproof Vacuum Compression Bag with Clear Window and One-Way Air Valve

    SL-P1133 Waterproof Vacuum Compression Bag with Clear Window and One-Way Air Valve

    Sealock SL-P1133 Waterproof Vacuum Compression Bag with Clear Window and One-Way Air Valve built from heat-sealed TPU-coated fabric. A PU-laminated waterproof zipper with T-shaped pull loads the bag, a one-way exhaust valve with detachable hand pump draws out trapped air, and an oval clear TPU window lets the packer identify contents without breaking the seal. Holds roughly 25–30 L of loose apparel compressed down to a 14 L slab. Weight 0.18 kg. Matte black, white and translucent white in stock; custom colors and printing available. MOQ 300 pcs, FOB Guangdong.
  • Sealock Bike Handlebar Bag Waterproof Bicycle Front Bag For Mountain Road

    Sealock Bike Handlebar Bag Waterproof Bicycle Front Bag For Mountain Road

    Sealock Bike Handlebar Bag Waterproof Bicycle Front Bag For Mountain Road
  • 30L Roll Top Waterproof Dry Backpack for Camping, Hiking and Travel

    30L Roll Top Waterproof Dry Backpack for Camping, Hiking and Travel

    Sealock supplies the 30L Roll Top Waterproof Dry Backpack for Camping, Hiking and Travel, a welded 500D PVC pack rated IPX6 with a roll-top and side-release buckles. Its large 100% waterproof main compartment keeps gear dry through heavy rain, with a front splash pocket, padded straps, a top handle and side compression. Optional 420D/600D TPU. OEM/ODM and wholesale from MOQ 300, FOB Guangdong.
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  • ​Best waterproof Backpack barnds ----- Sealock

    The Sealock waterproof Backpack 25L is a handy backpack that suits perfectly for short trips and daily tasks. It is large enough to tote any essential things that come to your mind. It is also much used for shopping, and it can serve as your kid’s school waterproof bag.

  • What are the application scenarios of dry bag?

    ​Dry Bags have a wide range of applications, mainly in outdoor activities and specific environments to protect items from moisture. Here are some of the main application scenarios for Dry Bags:

  • ​Sealock waterproof bike phone bag

    Sealock waterproof independent phone bag and TPU film design ensure that the phone fits more closely with the TPU film, providing a better touch phone experience while riding.

  • Dry Bag Manufacturer in China: The Complete 2026 B2B Sourcing Guide

    If you are sourcing waterproof dry bags for an outdoor brand, a retail program, or a private-label line, the manufacturer you choose decides three things at once: whether the product actually stays dry, whether it ships on time, and whether your margin survives tariffs. China remains the deepest supply base for dry bags — but "China" is not a quality grade. Factories range from sticker-and-stitch trading offices to vertically integrated plants with high-frequency welding lines and in-house pressure testing.

  • ​Sealock waterproof backpack made in Vietnam

    If you are looking for a small and stylish backpack, Sealock waterproof backapck is the ideal choice for you. The backpack features a 14-inch laptop compartment design with more space to store everyday items, clothes, shoes, books, cell phones, wallets and more.

  • TPU Dry Bags: Material Advantages for Premium Waterproof Products

    Sealock is a TPU dry bag manufacturer supplying premium waterproof bags to outdoor brands and importers sourcing at the material level. For a procurement team, the choice between TPU, PVC, and PU is not a detail — it decides weight, cold-weather behavior, service life, hand-feel, and compliance, and it is the single factor most responsible for why two bags that look identical online perform completely differently after a season. This is what TPU actually delivers as a material, where its cost is justified, and where it is not.

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