Wholesale Sourcing Guide
Size tiers, material platforms, sample checkpoints and OEM order terms — in the order a buyer actually decides them.
Choosing a Trolley Bag Assortment That Actually Sells
Buying trolley bags for wholesale is a balancing act between size coverage, material cost and order terms. Get the assortment wrong and you end up with a warehouse full of 28-inch cases in a market that mostly flies short-haul. Get the order terms wrong and a promising margin disappears in tooling fees, missed inspection windows or a lead time that slips past your selling season. This guide walks through the decisions in the order a buyer actually makes them: what sizes to stock, which material platform fits each price tier, what to check on wheels, handles and closures, and what to confirm before signing a purchase order.
The examples below reference Wellmax Luggage, an OEM/ODM manufacturer in Quanzhou, Fujian, producing around 150,000 pieces per month for buyers in more than 40 countries. The numbers cited come from its published product specifications; anything not stated there is a point to confirm during quotation and sampling.
Key takeaways
- Most programs need both cabin (20–22 inch) and checked (24–28 inch) tiers, weighted to your market's flight patterns.
- Shell material sets the price tier: ABS entry, polycarbonate mid-to-premium, aluminum frame statement, polyester softside.
- Published terms: MOQ 300 pcs per trolley style (200 sets for the aluminum-frame set), 30–35 days production, 35–40 days for the aluminum set.
- Define color, hardware, interior and packaging at the sample stage, and fix AQL and Incoterms before balance payment.
Trolley Bag Size Tiers: Cabin and Checked Demand
Most retail demand splits into two tiers. Cabin sizes (20–22 inch) sell to frequent flyers and commuters; checked sizes (24–28 inch) serve family travel, relocation and long holidays. A balanced wholesale program usually needs both, weighted toward your market's flight patterns.
- Cabin tier. A 20-inch ABS model such as the Lightweight ABS Cabin Trolley 20" at roughly 38 L is the entry-level workhorse — light, affordable, and easy to display in stacks. A 22-inch polycarbonate option like the Polycarbonate Cabin Luggage 22" adds a TSA lock and a tougher shell for buyers one step up.
- Mid-checked tier. 24–26 inch is the volume zone for checked luggage. The Softside Spinner Luggage 24" in polyester covers a fabric-preference segment, while the Expandable Checked Luggage 26" adds an expansion panel that retailers can merchandize as a feature.
- Large checked tier. The 28-inch Hardshell Trolley Case 28" PC Spinner at roughly 95 L addresses long-trip demand in matte black, navy or silver.
A practical starting point: confirm with your own sales data whether your customers replace cabin bags often (fashion-driven, higher turnover) or buy checked bags once every several years (durability-driven). That ratio should shape your size mix more than any generic recommendation.
Material Platforms: ABS, Polycarbonate, Aluminum Frame, Polyester
Each shell material maps to a price tier and a buyer expectation.
| Material | Positioning | Trade-offs |
|---|---|---|
| ABS | Entry-level hardshell | Light and low-cost, but less impact resistance than PC |
| Polycarbonate | Mid to premium hardshell | Flexible under impact, premium feel; higher unit cost |
| Aluminum frame + ABS | Premium statement | Frame closure with integrated lock, reinforced metal corners; heavier and costlier |
| Polyester softside | Fabric segment | Lighter handling, exterior pockets expected; less shell protection |
The aluminum-frame category — for example, Wellmax's Aluminum Frame Checked Luggage Set, a two-piece medium-plus-large set — sells on visual weight and security rather than weight savings. Note the different order terms: MOQ is 200 sets versus 300 pieces for most single trolley styles, and lead time runs 35–40 days rather than 30–35. Budget accordingly.
Quality Checkpoints: Wheels, Handles, Zippers, Closures
Specifications on a sheet do not tell you how a trolley bag behaves after 50 airport transfers. Inspect these four areas on every sample:
Wheels. Four double spinner wheels are the current standard on mid-range and above — Wellmax specifies them on its 24" and 28" spinner models, with four spinner wheels on its 26" hardshell trolley. Check wheel mounting: does the housing flex under side load? Roll the loaded case over carpet edges and stairs-adjacent surfaces, not just a smooth showroom floor.
Telescopic handle. Extend and retract it 30–50 times. Look for wobble at full extension, clicking in the locking stops, and whether the handle sits flush when retracted. Loose handles are among the most common early complaints in this category.
Zippers and closures. For zipper-closure cases, test the coil and slider under load — overpacked cases stress the seam as much as the zipper itself. For the 22-inch PC model, verify the TSA lock operates with an actual TSA key. For the aluminum-frame set, check the frame latches engage positively across all contact points.
Interior and stitching. On softside polyester models, examine seam stress points and wheel-housing reinforcements from inside. On OEM programs, lining fabric and interior organization are customization points — decide them at sampling, not after bulk production.
Sampling Before Bulk: What to Lock Down
Wellmax runs sampling, tooling, mass production, quality inspection and export under one roof, with cutting, sewing and assembly in a 12,000 m² facility. For an OEM/ODM buyer, the sample stage is where the program is actually defined. Confirm in writing:
- Shell color and finish (e.g., matte versus gloss PC)
- Hardware color and branding method on handle, zipper pulls and logo plate
- Interior lining, organization panels and any add-ons
- Packaging format — most Wellmax trolley styles ship individually poly-bagged in a carton; the 26-inch business model ships in individual cartons only, which affects freight volume
Exact sampling cost and sample lead time are not fixed figures in the published data; treat them as part of the quotation process and get them documented with the sample approval sheet.
OEM Trolley Bag Order Terms: MOQ, Lead Time and Customization
The published terms across Wellmax's trolley range are consistent: MOQ 300 pieces per style (200 sets for the aluminum-frame set) and 30–35 days lead time for mass production, extending to 35–40 days for the aluminum set. Capacity of roughly 150,000 pieces per month matters when you scale beyond a trial order — ask how your volume slots into the production calendar around peak season.
Customization scope for OEM programs typically covers shell color, hardware, interior and branding, supported by Wellmax's in-house design and development studio. For product categories outside the published trolley and backpack range — for instance, duffel bags — MOQ, fabric options and lead times are not published and should be confirmed directly through the quotation process rather than assumed to match trolley terms.
Inspection and Incoterms: Confirm Before You Pay the Balance
Two final confirmations protect the order. First, inspection: buyers commonly arrange third-party inspection before shipment, and Wellmax performs in-house quality inspection at its facility. Agree on the inspection standard (AQL level), the inspection timing relative to the 30–35 day production window, and who books the inspector, so a failed report doesn't collide with your vessel booking.
Second, Incoterms and certification paperwork. Wellmax holds ISO 9001:2015 certification covering its design, manufacturing and sales of luggage and travel bags, plus a BSCI social compliance audit at facility level — both are company-level credentials, not product-level test claims. If your market requires specific product testing or lab reports, raise it before the purchase order, not at customs. Confirm the quoted Incoterms (FOB, CIF or otherwise), the export port, and any document requirements with your quotation so the landed cost calculation you present to your own buyers holds up.
FAQ
1. Can I mix sizes or colors within the 300-piece MOQ per trolley style?
The published MOQ of 300 pcs applies per trolley style. Whether that quantity can be split across sizes or colors is a production-planning question, so confirm split-shipment and color-break options with Wellmax during quotation.
2. Does Wellmax offer its own design support if I don't have tech packs ready?
Yes. Wellmax has an in-house design and development studio supporting OEM/ODM programs, covering the full order cycle from sampling through export. Buyers without complete tech packs can typically start from a reference model and brief the studio on modifications.
3. What does the BSCI audit cover, and do my retail customers accept it?
BSCI is a social compliance audit conducted at the facility level, covering working conditions at the factory. Acceptance requirements vary by retailer; check whether your customers require the audit report itself or additional documentation.
4. Can I order a duffel bag or other bag categories alongside my trolley order?
Wellmax's published range covers trolley cases, backpacks, business and laptop bags, handbags and soft travel bags such as a 35L convertible travel backpack. Duffel bags are not listed in the published inventory, so MOQ, fabric options and lead times for that category would need to be confirmed through the quotation process.