KeepDryBag - Custom High-End Waterproof Bags

Why Choose KeepDryBag?

We specialize in high-frequency welding technology to manufacture 100% waterproof bags for professional use.

Factory Direct Customization

Located in Quanzhou, we offer OEM/ODM services for brands worldwide. From IPX6 floating bags to IPX8 submersible gear, we build to your specs.

Certified Waterproof Levels

We test for airtightness and water resistance. Our products meet IPX6, IPX7, and IPX8 standards using advanced TPU and PVC materials.

Advanced RF Welding

Unlike sewn bags, our seams are high-frequency welded to create a bond stronger than the fabric itself, ensuring zero leakage.

Professional waterproof backpack tested in heavy rain

Our 5-Step Production Process

A streamlined workflow designed for efficiency and quality.

Consultation

We discuss your requirements, budget, and timeline to find the perfect solution.

Design & Proof

Our team creates digital mockups and confirms all specifications with you.

Prototyping

For bulk orders, we produce a pre-production sample for your final approval.

Production

Mass production begins using advanced RF welding and quality materials.

QC & Delivery

Rigorous quality checks followed by secure packaging and global shipping.

RF-Welded Waterproof Production Line

Our production floor is organized into specialized cells for cutting, high-frequency welding, inspection and packing. Each workstation follows detailed SOPs so that every waterproof backpack, dry bag and cooler bag is made consistently, even across thousands of units.

For IPX7 and IPX8 projects, we set up dedicated welding jigs and fixtures to control seam overlap, welding time and pressure. This ensures every bag can pass real immersion tests, not just simple splash tests.

Waterproof bag RF welding and inspection line

What Our Clients Say

Trusted by brands and businesses worldwide.

"The quality of the RF welding is top-notch. Our custom dry bags have held up perfectly for our kayak rental fleet. Highly recommended!"

Sarah Jenkins

Owner, River Adventures Co.

"KeepDryBag made the customization process so easy. The engineers helped us choose the right material for our budget."

Michael Chen

Procurement Manager, TechGear Ltd.

"Fast shipping and excellent communication. We ordered 500 backpacks for our corporate retreat and everyone loved them."

Emily Ross

HR Director, Summit Corp.

Frequently Asked Questions

Do you have a minimum order quantity (MOQ)?

For custom manufacturing, our MOQ is typically 300-500 pieces depending on the complexity. However, we offer "No Minimum" options for specific stock items that can be printed with your logo.

Can I get a sample before placing a bulk order?

Yes! We strongly encourage prototyping. We can create a pre-production sample for your approval to ensure the design, material, and printing meet your standards.

What is the difference between PVC and TPU?

PVC is durable and cost-effective, great for heavy-duty use. TPU is eco-friendly, lighter, more flexible (especially in cold weather), and odorless, making it a premium choice.

Global Shipping

We recommend air, sea, railway, or truck freight based on weight. We handle the logistics so you don't have to.

Secure Payment

We support TT transfers, PayPal, and credit cards. Safe and risk-free payment options for buyers worldwide.

Transparent Pricing

Price depends on quantity, fabric, accessories, and printing. Our engineers confirm every detail before finalizing the quote.

Professional Custom IPX Waterproof Bags