The Roll-Top Waterproof Backpack 30L is a weatherproof everyday and outdoor pack with a roll-top closure and welded seams. Its clean, technical profile suits wet-weather commuting, cycling and light outdoor use. For OEM buyers, it is a strong base for commuter, cycling and outdoor retail channels.

Why buyers choose this backpack for weatherproof programs

This pack is built around wet-weather reliability: a 30-liter main compartment that seals with a roll-top closure, welded seams that keep rain out, and a padded back panel that keeps the load comfortable through a full day. For retailers and brands planning a private-label run, the technical silhouette works across commuting, cycling and travel contexts, which broadens sell-through potential without requiring multiple SKUs.

The waterproof fabric surface is smooth and consistent, giving the bag a uniform look across the available colorways. Because the material is specified at the product level, buyers can evaluate it against their own quality and price targets before sampling.

Available colorways and customization

• Standard colors: Black, olive and charcoal — three neutral tones that fit most seasonal assortments.
• OEM customization: Color, lining and hardware can be adjusted to match your brand direction. Confirm the specific options and any related tooling or minimums with our team before sampling.

Specifications at a glance

What to confirm before ordering

To move from this spec sheet to a confirmed order, our team will need a few decisions from you. Preparing these details in advance helps us return a more accurate quotation and sample plan:

• Target dimensions: Confirm the interior size and pocket layout you want, so we can match the pattern to your market's expectations.
• Lining and hardware finish: Specify lining fabric, pocket layout and hardware color (e.g., black, gunmetal) for the sample.
• Packaging and labeling: Confirm whether the standard poly bag and carton work, or if you need branded packaging and hang tags.
• Inspection and shipping terms: Let us know if you require third-party inspection and your preferred Incoterms for the destination port.

Manufacturing background

This backpack is produced by Wellmax Luggage, an OEM/ODM luggage and bag manufacturer in Fujian, China, founded in 2013. Our 12,000 m² facility houses cutting, sewing, assembly and inspection under one roof, with a team of about 320 people producing roughly 150,000 pieces per month. The same production system handles trolley cases, backpacks, business bags and handbags for buyers in more than 40 countries.

Our quality management system is certified to ISO 9001:2015, and our facility is audited under the BSCI framework for social compliance. These certifications apply at the company and factory level; they cover our design, manufacturing and sales processes rather than a specific product claim for this backpack.

Production and inspection

Each order moves through dedicated sewing lines, followed by finished-product inspection before packing. This means stitching consistency and final quality checks are built into the workflow before your goods are boxed into cartons for export.

Frequently asked questions

Can I get a sample before placing a bulk order?

Yes. Sampling is part of our OEM/ODM order cycle. Please contact us with your target specifications so we can prepare a sample for your approval before mass production.

What is the minimum order quantity?

The MOQ for this backpack is 500 pieces. If you are planning a smaller trial run, contact us to discuss options.

What is the lead time for production?

Standard lead time is 30-35 days after sample approval and order confirmation. Final timing depends on order volume and current production schedule.

Can the backpack be customized for my brand?

Yes. As an OEM/ODM manufacturer, we can adjust color, lining and hardware. Share your design direction and we will confirm what is feasible for this style.

How is the backpack packaged for shipment?

Each pack is packed in an individual poly bag and then packed into cartons for export. If you need branded packaging, let us know so we can include it in the quotation.