Capacity is the fastest way to structure a backpack program. Buyers who segment a range by liter size can map every style to one retail channel and avoid overlapping products on the same shelf. Wellmax Luggage, an OEM/ODM bag manufacturer founded in 2013 in Fujian, China, produces commuter, travel and outdoor backpacks alongside trolley cases, business bags and handbags. The sections below turn the 16 to 40 liter range of the current backpack line into a balanced retail assortment.
Capacity decides who buys a pack and where the pack sells. A 16-liter pack answers a commuter's minimal daily carry, while a 40-liter pack answers a multi-day trek. Between the two poles, every band maps to a channel: corporate commuter retail, student and lifestyle stores, travel retail and outdoor specialty. When an OEM backpack program fixes capacity bands before sampling, duplicate styles stay off the shelf.
Capacity also shapes cost in soft goods. Larger panels consume more fabric, heavier loads need reinforced stitching and stronger hardware, and ventilated back panels add components at the top end. Quoting a custom backpack line by band keeps unit prices comparable within each band and shows where feature upgrades justify the next price step.
16 to 22 Liters: The Commuter Backpack Segment
A commuter backpack carries a laptop, documents and daily essentials without bulk. Four styles cover the 16 to 22 liter band. The Slim Laptop Backpack 16L keeps a compact profile for minimal daily carry, and the Laptop Commuter Backpack 18L adds an organized front pocket in an 18-liter layout. The Anti-Theft Commuter Backpack 20L hides its zippers for crowded transit, while the Urban Commuter Backpack 22L uses water-resistant fabric for daily city travel.
All four styles include a padded laptop compartment, and all four accept custom colors, lining and hardware, the customization OEM backpack buyers expect for private-label programs. Corporate gifting buyers usually start at 16 to 18 liters, while student and urban retail channels take the 20 to 22 liter styles.
25 to 30 Liters: Multi-Use and Weather-Ready Backpacks
The middle band covers buyers who carry more than a laptop. The Technical Daypack 25L Water-Resistant pairs a padded back panel with organized compartments for commuting, campus life and short hikes. The Roll-Top Waterproof Backpack 30L seals a 30-liter main compartment with a roll-top closure and welded seams for wet-weather commuting and cycling. Both styles suit programs offering one pack for weekday and weekend use, a frequent request in OEM backpack inquiries.
35 to 40 Liters: Travel and Outdoor Backpacks
The top of the range answers carry-on travel and trail programs. The Convertible Travel Backpack 35L includes a luggage pass-through to slide over a trolley handle, a padded laptop compartment and an organized interior for weekend trips. The Outdoor Trekking Backpack 35L adds a ventilated back panel and reinforced stitching for day hikes. The Outdoor Hiking Pack 40L extends capacity for multi-day treks with a supportive hip belt and multiple compartments.
Travel retail buyers often pair the Convertible Travel Backpack 35L with a cabin trolley case, because the pass-through turns one purchase into a matching set. Outdoor specialty channels usually stock the 35 liter trekking pack and the 40 liter hiking pack side by side, so one shelf covers day hikes and overnight routes.
Building the Range: Sampling, MOQ and Lead Time
Soft-goods programs carry a pattern-making threshold instead of shell tooling, and the minimum order differs by style and material. Wellmax Luggage confirms the MOQ per line in writing before sampling. A typical sampling cycle runs one to three weeks and bulk production four to six weeks depending on order size and product complexity. Buyers planning an OEM backpack line should submit capacities, target channels and quantities together, so the sample schedule covers every style in one cycle.
Frequently Asked Questions
How many styles should a first backpack line include?
Three to five styles across two capacity bands give a new program depth without spreading the budget thin. A 20 liter anti-theft commuter style, a 30 liter waterproof style and a 40 liter hiking style cover three distinct retail channels under one inspection standard.
Can one factory produce commuter and outdoor backpacks together?
Yes, when the supplier runs all soft-goods lines in one facility. Commuter packs and hiking packs share cutting tables, sewing lines and incoming material inspection at Wellmax Luggage, so one quality document covers the whole range.
Next Step for Buyers
Buyers planning an OEM backpack line can review the backpack range on the Wellmax Luggage site, then send target capacities, channels and volumes in one inquiry. The export team answers with per-line MOQ, unit price bands and a sampling schedule covering the complete line.