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China Waterproof Bike Backapck Manufacturers, Suppliers, Factory

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  • 15L TPU Waterproof Cycling Backpack with Floating Ventilated Back System

    15L TPU Waterproof Cycling Backpack with Floating Ventilated Back System

    Sealock supplies the 15L TPU Waterproof Cycling Backpack with Floating Ventilated Back System, a welded TPU pack rated IPX6 with a waterproof dual zipper, a suspended ventilated back panel, a slim cycling fit and a full harness — padded straps, a sliding sternum strap and a waist belt. It adds a gear-attachment system and an internal pocket. OEM/ODM from MOQ 300, FOB Guangdong.
  • 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.
  • SL-E071 22L Water-Resistant Commuter Backpack with Padded Laptop Sleeve

    SL-E071 22L Water-Resistant Commuter Backpack with Padded Laptop Sleeve

    SL-E071 — 22 L Water-Resistant Commuter Backpack. Shell 600D polyester with PU face coating, colour-block panelling; laminated coil zippers with rubberised pulls; light-grey PU-backed lining; padded 15.6″ laptop sleeve with hook-and-loop strap; one zipped and two open internal pockets; twin drawcord side pockets under welded-tab flaps; S-curve padded shoulder straps, padded back panel, top haul handle. 48 × 34 × 13.5 cm, 0.78 kg. Stock colourway yellow / teal; custom Pantone panelling available. MOQ 300 pcs, FOB Guangdong, samples 7–15 days.
  • 15L / 20L Roll-Top Waterproof Dry Bag with Backpack Straps (IPX7)

    15L / 20L Roll-Top Waterproof Dry Bag with Backpack Straps (IPX7)

    Sealock supplies the 15L / 20L Roll-Top Waterproof Dry Bag with Backpack Straps, a welded 0.5 mm 500D PVC dry sack rated IPX7 with a patented dual seal — a fold-over roll-top plus an inner transparent PVC waterproof membrane for extra airtightness. It carries as a backpack with side compression, floats when sealed, and comes in two sizes. OEM/ODM from MOQ 300,* FOB Guangdong.
  • Fly Fishing Waterproof Backpack 15L

    Fly Fishing Waterproof Backpack 15L

    fly fishing waterproof backpack 15L , suitable for all kinds of outdoor streams, with airtight and waterproof zipper, the zipper is set on the top to keep the inside of the bag dry, with a double shoulder design, you can easily take the items inside the bag when in use, with a capacity of about 15L. 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 fishing rod bucket on the side, and the front of the main bag is elastic. Mesh bags to store items, a variety of suspension systems, fully perfect the outdoor fishing function
  • 10L/20L Waterproof Dry Bag with Dry-Wet Separation Pouch

    10L/20L Waterproof Dry Bag with Dry-Wet Separation Pouch

    Sealock supplies the 10L/20L Waterproof Dry Bag with Dry-Wet Separation Pouch, an IPX7 roll-top dry bag in eco-friendly PVC with a double waterproof closure and a removable inner pouch that keeps wet kit away from dry. It carries three ways — shoulder, backpack or hand — in pink or blue camouflage, with OEM/ODM and customized logo available from an MOQ of 300 pcs.
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  • Fly Fishing Bag Manufacturer with Custom Branding

    Sealock manufactures fly fishing bags for outdoor brands, fly shops, guide services, and OEM programmes from factories in China and Vietnam, with both welded and stitched construction in house and custom branding across the range. Fly packs are not general daypacks with extra D-rings. Their geometry, ride height, closure, and attachment layout derive from two constraints nothing else in outdoor gear shares — the angler is standing in moving water, and there is a fly line in the air — and delivering them takes two different manufacturing disciplines rather than one.

  • Waterproof Backpack, Duffel or Dry Bag: Choosing the Right Format

    Sealock manufactures waterproof backpacks, duffels, and dry bags for OEM and wholesale buyers from factories in China and Vietnam, with an MOQ of 300 pieces and samples in 7–15 days. Brands entering the category often start from a format they already like rather than from the problem the product solves — and format is the decision that constrains everything downstream: cost, waterproof ceiling, how much organisation is possible, and who will buy it. This is the framework for choosing, before any specification work begins.

  • What size dry bag for kayaking?

    When choosing the right dry bag size for kayaking, there are several factors to consider, including the type of activity you plan to do, the amount of gear you need to carry, and personal preference. Here are some tips on how to choose the right dry bag size:

  • Dry Bag Manufacturer: OEM & Custom Waterproof Bag Production Guide

    Sealock is a dry bag manufacturer supplying wholesale, OEM, and ODM waterproof bags to brands and distributors worldwide, with welding, tooling, testing, and quality control kept in-house across two factories. This guide is written for buyers evaluating a waterproof bag supplier: what separates a real manufacturer from a trading company, which specifications to confirm before an order, the applications the range is engineered for, and the production and customization capability that sits behind it.

  • Motorcycle Waterproof Bag Factory with RF Welding Technology

    Sealock manufactures motorcycle waterproof bags at factories in China and Vietnam using in-house 27.12 MHz radio-frequency welding. On most waterproof products a weld has one job: keep water out. On motorcycle luggage it has two — it seals the body and it anchors every strap, D-ring, and mounting panel that holds a loaded bag to a vibrating machine. That dual role, under continuous vibration, is what makes welding capability the decisive factory question in this category.

  • ​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.

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