When apparel sellers ship into an Amazon warehouse, what comes back is rarely a quality complaint. It is an inbound exception notice: bags too thin, no suffocation warning, an FNSKU label on a fold that will not scan, a set with no do-not-separate marking. On the factory floor these barely register as problems; at FBA they turn straight into unsellable inventory or per-unit prep fees. Packaging is not decoration first — warehouse compliance is its first job.
Six things follow: how to choose between the three inbound formats, the five hard rules for poly bags, where the FNSKU and barcode go, the traps that hang tags and care labels set in e-commerce, master cartons and shipping, and how to fold all of it into your trims purchase order. Site-level rules differ and change; this is the stable framework, and the exact figures should come from the inbound guide in your seller account.
1. Three Inbound Formats: Pick the Route First
Apparel reaches FBA by one of three routes: flat-packed in a bag, hung, or boxed. Which one depends on the price point, whether the fabric suffers under pressure, and whether the SKU sells singly or as a set. Until the format is fixed, bag specs, hang tag placement and carton layout have nothing to anchor to.
| Format | What it suits | Key requirements |
|---|---|---|
| Flat in poly bag | T-shirts, loungewear, knits, most e-commerce styles | Bag gauge and warning wording compliant, contents flat, barcode scannable through the bag |
| Hung | Suiting, coats, dresses — higher-ticket styles that bruise under pressure | Consistent hanger type and hook direction, outer dust bag, hang tags not creased |
| Boxed and gift box | Gifting, sets, high-margin boxed styles | Crush-resistant board, fixed inner fitment, carton sized to the box to stop movement |
2. Poly Bags: Five Details That Fail Inspection
The poly bag is the cheapest trim you buy and the easiest place to lose money. These five points are where inbound really stops you; miss any one and you either pay prep fees or lose the lot as unsellable.
- Gauge: standard apparel bags sit at 1.5 mil (about 0.04 mm) or above. Thinner bags split under handling and stacking, which means no packaging at all
- Suffocation warning: openings of 5 inches (about 12.7 cm) and above need the warning, printed on the bag or applied as a label, in a font size that matches the bag area and a language the destination site requires
- Scannability: the barcode must read through the bag. With clear bags watch glare and creases; with opaque bags put the label on the outside
- Cleanliness: no paper dust, loose fibres or oil inside. Dark garments show all three, and turn them into foreign-matter complaints
- Closure and air: zip-lock or taped closure both work, provided it survives carton stacking without splitting; press out part of the air or the carton bulks up and you pay on both freight and storage
3. FNSKU and Barcodes: Placement Matters More Than Material
A lot gets flagged as commingled over a label sitting half a centimetre off. The requirement itself is simple: it scans, it lies flat, it covers nothing it should not.
- Cover the original: when a manufacturer barcode and an FNSKU coexist, the FNSKU must cover it fully with no edge showing; one exposed corner scans as a different ASIN
- On a flat face: avoid seal lines, folds and curved seams, and press the label down by hand to kill bubbles and lifted edges
- Cover nothing needed: the suffocation warning, fibre content, care instructions and set markings must stay visible, otherwise they do not exist
- Sets and multipacks: the outer bag must say do not separate and state the count; a buyer splitting it for resale makes the listing non-compliant and the liability yours
4. Hang Tags and Care Labels: Two E-commerce Traps
Online, a hang tag is no longer just brand theatre: it carries price and compliance at the same time. Price and physical condition are where it goes wrong.
- Price data: if the tag carries a retail price, a promo price or a discount sticker, confirm before inbound whether it must be removed or covered. The safest route is an e-commerce-only tag printed without any price
- Physical condition: creased tags, cords tangled into a knot, an eyelet edge that cuts the bag — all become buyer complaints. Face every tag the same way and keep cords at 7 to 10 cm and most of it disappears
- Care label content: fibre content, country of origin, care instructions and a responsible party, in the destination language. For the US watch fibre order and the RN number; for the EU, local language and the responsible party's address
5. Cartons and Shipping: Size, Mixing and Moisture
Compliant unit packaging is only step one; the carton is the unit that actually enters the warehouse.
- Carton weight: usually capped near 22.7 kg (50 lb) for the US and tighter for Japan; overweight cartons get refused or surcharged, so split them
- Mixed SKUs: separate different SKUs with dividers or individual bags, leave no room to shift, and label the outside clearly
- Carton labels: put the FBA label on a flat face, away from tape and corners; several labels on one carton cause receiving errors outright
- Moisture: container day-night swings soften cartons and paper bags. On long routes in peak season, add a moisture barrier bag or desiccant — especially with paper bags and gift boxes
6. Put FBA Prep Inside the Trims Order
The cheapest route is not a third-party prep centre but doing it once inside the trims order: bags printed with the site's warning, tags printed without price, set bags sealed and marked do-not-separate, barcode labels supplied with the goods. The increment per unit is small; what you avoid is per-unit prep fees and inbound rejections.
| Item | What to specify |
|---|---|
| Poly bag | Gauge, warning language, closure type, whether branded |
| Hang tag | Price field or not, cord length, eyelet size, lamination or not |
| Care label | Destination languages, fibre and care content, sewing position |
| Barcode labels | Material (cold-resistant, no residue), roll direction, size |
Plan 45 to 60 days: 10 to 25 days for the trims themselves, plus printing, labelling, cartoning and sea freight — and two more weeks in peak season. Back-scheduling those dates with your supplier beats chasing a container the week before cut-off.
Related Articles
- Trims FAQ: all articles
- Suffocation Warning Labels for Poly Bags
- Poly Bag Thickness Guide
- E-commerce Platform Label Requirements: Amazon, Temu, SHEIN and TikTok Shop
- US State Packaging EPR Laws: California SB 54 and Neighbours
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