• Waterproof Backpack
  • Dry Bag
  • Waterproof Bag
  • Waterproof Bag

    Sealock Outdoor Gear co.,Ltd is one of the leading China Waterproof Bag manufacturers and suppliers with one of the famous brands, as a professional company our factory is able to produce low price Waterproof Bag with high quality. Welcome to buy discount and High quality products from us.

    The following is about Waterproof Bag related, I hope to help you better understand Waterproof Bag.


    > Waterproof fanny pack 3 liter capacity airtight waterproof> waterproof phone pouch for swimming> bicycle dry backpack 20Liter
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  • Fish Bag

    Are there waterproof bags?
    Dry bags, dry cases and waterproof pouches keep essential items safe when you're out on the water. ... These bags provide both peace of mind and easy access to your gear.

    What is difference between water repellent and waterproof?
    Essentially, water resistant and waterproof designate the degree to which rain is kept from getting through a jacket, while water repellent refers to an extra coating that improves any rain jacket's performance (waterproof, included).

    The following is about Waterproof Fishing Bag related, I hope to help you better understand Waterproof Fishing Bag

    Sealock Outdoor Gear co.,Ltd is one of the leading China Waterproof Fish Bag manufacturers and suppliers with one of the famous brands, as a professional company our factory is able to produce low price Waterproof Fishing Bag with high quality. Welcome to buy discount and High quality products from us.

    We supply OEM up to IPX8 waterproof and 36 hours of continuous cold storage cooler bag for fishing. We have more than 10000 m2 of production site and professional production R&D team in China and Vietnam. The products are sold to more than 40 countries and regions around the world. Welcome to contact us!

    > Large-capacity waterproof fly fishing backpack 15L> fly fishing waterproof backpack 15L> Fly fishing pack 24L waterproof backpack
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  • Bike bags

    Sealock bike bags, waterproof, dustproof, oilproof, various styles, including camel bag, rear seat bag, front bumper bag, backpack, tool bag, etc., make your riding safer and protect your important equipment.
    > waterproof bicycle tail bag from sealock outdoor gear
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  • Welded Cooler

    The following is about Welded Cooler related, I hope to help you better understand Welded Cooler. Sealock Outdoor Gear co.,Ltd is one of the leading China Waterproof Bag manufacturers and suppliers with one of the famous brands, as a professional company our factory is able to produce low price Waterproof Bag with high quality. Welcome to buy discount and High quality products from us.

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About Us

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拍摄要求:1920×800 车间实拍横幅
需可见产线纵深与作业人员
右侧 40% 区域预留文字遮罩
Dongguan, China · Ho Chi Minh City, Vietnam

Waterproof Bag Manufacturer Since 2003

High-Frequency Welding and Precision Sewing Under One Roof

Three factories in Dongguan, China and Ho Chi Minh City, Vietnam. Over 1,000 staff and 400,000 pcs monthly capacity, building OEM and ODM programs for outdoor brands worldwide.

Capability 01 · Welding

214 High-Frequency Welding Sets

Welded seams, not stitched ones. No needle holes to seal.

Every batch is peel-tested against a written material standard before it leaves the floor. IPX7 and IPX8 construction verified by full water-immersion testing, two hours and beyond.

Capability 02 · Sewing

250 Sewing Machines, All In-House

Harness systems, hip belts and reinforced bases built on our own lines.

Sewing is not something we outsource. Our sewing floor sits in the same building as our welding floor, and most of what we build passes through both.

20+
Years Manufacturing
3
Factories CN & VN
214+
HF Welding Sets
250+
Sewing Machines
400k
pcs Monthly Capacity
ISO 9001 BSCI Sedex SMETA GRS HIGG SCAN
Third-party inspection by SGS or QIMA available on request.
Capabilities

Two lines. Same building. Same standard.

Buyers often assume we only weld. Half of our floor space says otherwise.

Photo · 800×600 拍摄要求:高频焊机作业中的车间实拍
必须有作业人员与运行中的设备,不接受空厂房
Capability 01

High-Frequency Welding

Welded construction eliminates needle holes entirely. Panels are fused rather than stitched, which is why our submersible products hold a seal under sustained immersion.

  • 214 setsWelding machines across our China and Vietnam plants
  • Per batchPeel strength tested against a written material standard
  • IPX7–IPX8Verified by full water immersion, 2 hours and beyond

Dry Bags · Soft Coolers · Duffels · Motorcycle Luggage · Phone Pouches

View Welding Line
Photo · 800×600 拍摄要求:缝纫车间实拍
需可见产线纵深,与左栏取景高度、机位保持一致
Capability 02

Precision Sewing

Load-bearing structures still need thread. Shoulder harnesses, hip belts and reinforced bases are sewn on our own lines, in the same building as our welding floor.

  • 250 unitsSewing machines across our China and Vietnam plants
  • Bar-tackDouble-needle reinforcement at every stress point
  • 1,500+Cycle load testing on our in-house oscillation rig

Backpacks · Fishing Bags · Travel Duffels · Business & Laptop Bags

View Sewing Line
Two processes. One quality standard. Most of what we build uses both — a welded body carrying a sewn harness. See how we verify both →
Product Range

Six categories, two processes

Every category carries the process tag it is actually built with, so you know which line your program runs on before you send a drawing.

RF Welded图位 600×450 · 干袋组图,统一白底

Waterproof Dry Bags

Roll-top and airtight-zipper dry bags from 5L to 65L, rated IPX6 to IPX8.

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RF Welded图位 600×450 · 软冷藏包,统一白底

Soft Coolers

Food-grade lined soft coolers and totes holding ice 24 to 48 hours.

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Welded + Sewn图位 600×450 · 通勤/骑行背包

Waterproof Backpacks

Commuter, cycling and expedition packs with fully sewn harness systems.

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Welded + Sewn图位 600×450 · 钓鱼斜挎与背包

Fishing Bags

Slings, backpacks and insulated kill bags for fly and lure fishing.

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RF Welded图位 600×450 · 行李袋线,20/25/40/55/60/70L

Duffel & Travel Bags

Welded duffels from 20L to 70L, with airtight zippers and roll-top closures.

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RF Welded图位 600×450 · 摩托尾包与鞍袋

Motorcycle Luggage

Tail bags, saddlebags and 3-way touring bags rated to 50 kg.

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Quality Control

What we measure, and what it has to clear

Both lines are verified in the same in-house lab, against the same written standards.

TEST 01

Full Water Immersion

2 hours and beyond
TEST 02

Weld Peel Strength

Per written material standard
TEST 03

Zipper Fatigue

3,000 cycles under load
TEST 04

Oscillation Load Test

1,500+ cycles
TEST 05

Colour Fastness

Dry and wet crocking, grey scale
TEST 06

Climate Chamber

72 h, 54 °C / 95 % RH to 0 °C

Also in our lab: abrasion resistance, salt spray, tensile and bonding strength, colour difference, and multi-channel thermal logging for insulated products.

IQC — Incoming

Fabric, zippers and hardware are checked against spec before anything reaches the production floor.

IPQC — In-Process

First-article approval before every run, with in-line checks at welding, sewing and assembly.

OQC — Outgoing

100% appearance and closure inspection, plus batch sampling for immersion and tensile strength.

Customer air-leak procedure, executed on request
Unboxing Vacuum extraction 24-hour static rest Leak determination
See Our QC Process
Facilities

Two countries, one standard

Any product in our range can be built in China or Vietnam, so you can place origin where your tariff position needs it.

Photo · 800×500拍摄要求:办公与研发区内景(现用外景楼体照需替换)

Sealock CN Office

Dongguan, Guangdong, China
2,000
m² Area
20
Sales & R&D
400
pcs/mo Sampling
Lead time 7–15 days for samples
Photo · 800×500拍摄要求:中国厂车间内景,需同时体现焊接区与缝纫区

YiFuLong China Factory

Dongguan, Guangdong, China
10,000
m² Area
180
Staff
100k
Units / Month
待补:120 台设备的 HF / Sewing / Cutting 拆分
Photo · 800×500拍摄要求:越南 1 厂车间内景,可见产线纵深

YiFuLong Vietnam Factory 1

Ho Chi Minh City, Vietnam
3,500
m² Area
250
Staff
100k
Units / Month
HF Welding 64·Sewing 120·Cutting 6
Photo · 800×500拍摄要求:越南 2 厂车间内景,可见产线纵深

YiFuLong Vietnam Factory 2

Ho Chi Minh City, Vietnam
7,000
m² Area
600
Staff
200k
Units / Month
HF Welding 150·Sewing 130·Cutting 8
On the Floor

Both lines, on video

One clip per process, same length, same crew. If we claim two lines, we show two lines.

现有素材可用:焊接车间视频(首页已有)

RF Welding Line

Panel welding, seam forming and die changeover on our high-frequency floor.

待拍摄:缝纫车间视频
需与左侧焊接视频等长、等画质

Sewing Line

Harness assembly, bar-tacking and finishing on our sewing floor.

How We Work

From drawing to container

Eight steps, with the timings we actually quote.

01

Inquiry

Send a drawing, a sample, or just a target spec. We reply within 24 hours.

02

Design & DFM Review

Our engineers flag welding and sewing constraints before any tooling is cut.

03

Sampling

7–15 days for most programs. Ground-up development takes longer.

04

Tooling & Dies

Welding dies and moulded hardware made to your design, not adapted from ours.

05

Pilot Run

First-article approval and lab verification before we scale up.

06

Mass Production

30–45 days, across three plants in China and Vietnam.

07

Final Inspection

Our OQC, plus SGS or QIMA third-party inspection on request.

08

Shipping

FOB Guangdong or Shenzhen. Vietnam origin available.

MOQ
From 300 pcs
Sampling
7–15 days
Production
30–45 days
Terms
FOB Guangdong / Shenzhen
Origin
China or Vietnam
Payment
T/T 30% + 70%
Applications

Where this gear ends up

Four environments that set the spec for everything we build.

Photo · 1200×600图位:皮划艇/水上运动实景(替换现有拼贴破图)

Kayaking & Water Sports

Roll-top packs, airtight-zipper duffels and buoyant dry bags built for sustained immersion. Tested to two metres for two hours, with buoyancy holding the top above water when properly sealed.

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Photo · 1200×600图位:徒步露营实景

Camping & Trekking

Suspended-back hiking packs, compression sacks and welded duffels that survive being dragged, dropped and soaked. Welded bodies paired with sewn harness systems and padded hip belts.

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Photo · 1200×600图位:飞钓/路亚实景

Fishing

Slings, backpacks and insulated kill bags for fly and lure fishing. Airtight zippers with moulded end caps protect the point where fishing bags usually fail first.

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Photo · 1200×600图位:摩托长途骑行实景,需露出尾包或鞍袋装载状态

Motorcycle & Touring

Tail bags, saddlebags and 3-way touring luggage that stay sealed through rain, road spray and vibration. Seam-welded PVC and TPU bodies, with detachable saddlebag pairs rated to 50 kg.

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Technical Resources

Inside the lab

Eight machines on our own QC floor, each with a written SOP and a calibration date. One article per machine, and the number each one has to produce before a batch ships.

Peel & Tensile

The Number That Decides Whether a Weld Is Actually a Weld

Our peel tester pulls a welded strip apart at 300 mm/min. Every material has a written pass value it has to clear.

Read →
Zipper Fatigue

3,000 Pulls Under Load: The Part of a Bag That Fails First

Zippers give out before fabric does. The rig cycles a loaded slider until we know how soon.

Read →
Abrasion

The Machine That Rubs Our Fabric Until It Fails

Four stations, 2.5 kg plates, wool felt against the face of the fabric until the surface gives out.

Read →
Colour Fastness

Will the Colour Come Off on Your Shirt?

Dry and wet crocking on the AATCC rig, graded against the grey scale for staining.

Read →
Climate Chamber

72 Hours in a Box That Lies About the Weather

Heat, humidity and freezing cycled back to back, to whichever written standard the customer sends us.

Read →
Oscillation

The Rig That Shakes a Loaded Bag Until Something Gives

A weighted bag hangs from an impact head and swings, cycle after cycle, until a seam, strap or handle complains.

Read →
Colour Matching

Whose Daylight Are We Matching?

A colour approved under one light source can miss under another. The light box settles which daylight counts.

Read →
Thermal Logging

Four Probes, One Cooler, Forty-Eight Hours

Multi-channel thermocouples log ice retention at several points at once, without cutting a single bag open.

Read →

Tell us what you need built.

Send a drawing, a sample, or a target spec. Our engineering team replies within 24 hours.

Latest News

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