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  • 38L IPX7 Waterproof Floating Dry Backpack with Phone Window & Removable Wet Bag

    38L IPX7 Waterproof Floating Dry Backpack with Phone Window & Removable Wet Bag

    New waterproof backpack for hiking 38 Liter with yellow window,the waterproof dry backpack for hiking 38liters, material 500D PVC, thickness 0.5MM, the whole bag is semi-circular design, there is a sunroof for storing mobile phones on the front side, you can use the mobile phone to keep dry, add a multi-function lock, lock the paddle board, right there is a deflated and inflatable device on the side, which can fill the bag with gas to the maximum extent, temporary life-saving protection, and carry one-piece EVA on the back to reduce the weight and heat during hiking. The 28-liter capacity can meet a day's play.
  • 20L IPX6 TPU Waterproof Roll Top Backpack with Laptop Compartment

    20L IPX6 TPU Waterproof Roll Top Backpack with Laptop Compartment

    Sealock is a professional China Roll Top Closure Backpack manufacturer and supplier. The bag is equipped with two mesh bags and for shock resistance ipad layer , as well as a zipper pocket.
  • 15L Waterproof Backpack with Waterproof Zipper for Hiking and Cycling

    15L Waterproof Backpack with Waterproof Zipper for Hiking and Cycling

    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.
  • Lightweight Waterproof Fly Fish Shoulder Bag 10L

    Lightweight Waterproof Fly Fish Shoulder Bag 10L

    Lightweight Waterproof Fly Fish Shoulder Bag 10L, suitable for various outdoor streams, with airtight waterproof zipper to keep the inside of the bag dry, single shoulder design, easy to take the items inside the bag when in use, about 10L capacity, It can store fishhooks, fishing lines, bait boxes, etc. The overall bag is waterproof, and the 420D TPU waterproof layer is used for the color, and the seamless combination process ensures that the items in the bag are always safe. There is a hand-held fishing net on the front of the main bag, and a variety of hanging system, fully perfect the outdoor fishing function
  • Fishing Bag for Fishing with Airtight Zipper

    Fishing Bag for Fishing with Airtight Zipper

    The following is the introduction of high quality Fishing Bag for Fishing with Airtight Zipper, hoping to help you better understand it. Welcome new and old customers to continue to cooperate with us to create a better future!
  • 20L Waterproof Travel Duffel Bag with Airtight Zipper (IPX7)

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

    20L IPX7 waterproof duffel with a genuine airtight zipper, welded 840D TPU shell, front waterproof pocket, internal zip pocket and a reinforced base board. Just 0.75kg with a detachable shoulder strap. OEM/ODM from MOQ 300.
  • Related Blog
  • Reviews

  • Welding the Hardest Part of a Dry Bag: The See-Through Window

    DONGGUAN, China — [July], 2026 — A production run of see-through roll-top dry bags is moving through the high-frequency welding lines at Sealock (Dongguan Yifulong Outdoor Products Co., Ltd.) this week. Built for an overseas brand customer, the bags pair a black waterproof body with a clear front window — a combination that looks simple on a product page and is, in fact, one of the more demanding things a waterproof-bag factory is ever asked to weld.

  • Waterproof Duffel Bag for Kayaking Protecting Equipment on the Water

    Sealock manufactures the waterproof duffel bag for kayaking for wholesale and OEM buyers worldwide, sized and sealed for exactly what a paddler's gear goes through: spray on every stroke, a full capsize now and then, and a cockpit or hatch with an odd shape to pack into. Ordinary luggage was never built for that combination. What follows is how the bag is built to take it, and what it protects along the way.

  • Best Waterproof Motorcycle Bag: ADV Packing & Strap-Down Physics

    At 120 km/h, aerodynamic drag vectors convert loose dry bag wrinkles into micro-parachutes, ripping weak PVC seams and throwing cargo weight balances off axis. This tactical dual-site manual strips away cosmetic retail marketing to deliver raw, factory-floor strap-down mechanics and high-frequency material load profiles for serious adventure touring riders.

  • Waterproof Dry Bag Manufacturer: Factory Capabilities and Production Process

    Sealock is a waterproof dry bag manufacturer supplying OEM and wholesale production from vertically integrated factories in China and Vietnam. When a brand is choosing a factory rather than a product, the questions change: not "what does this bag cost" but "what can this plant actually make, at what volume, to what standard, and how." This is a look inside the equipment, the production line, and the step-by-step process that turns a roll of coated fabric into a shippable, audit-ready order.

  • 20L Waterproof Dry Bag: What Can It Hold and Who Is It For?

    Sealock manufactures the 20L waterproof dry bag for wholesale and OEM buyers worldwide, and its 20L bag with a transparent window is among the most practical — letting users check a phone or map without opening the bag. This document explains what the capacity holds, who it suits, and the company background, technology, specifications, quality control, and customization terms.

  • ​Sealock Launches Innovative Waterproof Soft Cooler for Ultimate Outdoor Comfort

    Leading the way in cutting-edge outdoor solutions, Sealock is thrilled to unveil its latest innovation: the Waterproof Soft Cooler. This state-of-the-art cooler redefines the outdoor experience, offering not only exceptional cooling capabilities but also an unprecedented level of waterproof functionality.

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