From tech pack to container: the real underwear production timeline
Most sourcing delays are not production problems — they are calendar problems. Buyers plan backwards from a launch date and discover too late that sampling, fabric booking and sea freight do not overlap the way they assumed. Here is the timeline we plan with, and the reverse-planning table to check your own dates against.
1. Stage-by-stage timeline
| Stage |
Duration |
What has to be signed off to move on |
| Quote & spec confirmation |
1–2 days |
Fabric spec (composition, GSM), waistband, packing, target price |
| Fabric booking & lab-dip approval |
5–10 days |
Lab dip / strike-off approved against your colour standard |
| Sampling (pre-production sample) |
7–10 days standard; 10–14 days for sleepwear / sport bras |
PP sample approved in writing ("bulk must match approved PP sample") |
| Bulk production |
45–60 days for a new style; 30–40 days for a repeat order |
Trim and label cards confirmed; production slot booked |
| Inline QC + final inspection |
During production + 1–2 days pre-shipment |
AQL 2.5 pre-shipment inspection passed |
| Packing & container loading |
2–4 days |
Packing list, carton marks, shipping marks confirmed |
| Sea freight to destination |
EU 30–35 days · US West Coast 20–25 days · US East Coast 30–35 days · South America 30–45 days |
Documents: invoice, packing list, B/L, certificate of origin |
| Air freight (if you must) |
5–8 days door to door |
Costs multiples of sea freight — use only for samples or urgent top-ups |
2. Total lead time, end to end
| Scenario |
Production + freight to EU |
Total from PO to your warehouse |
| Repeat order, existing style and fabric |
30–40 + 30–35 days |
≈ 60–75 days |
| New style, new fabric |
45–60 + 30–35 days |
≈ 75–95 days |
| New style + third-party inspection by your nominated firm |
Add 5–7 days |
≈ 80–100 days |
| Peak season (Aug–Oct, pre-Christmas / pre-Valentine's) |
Add 10–15 days |
≈ 90–110 days |
3. Reverse planning: when to start for a launch date
| If you need goods in your warehouse by… |
Place the PO by… |
Start sampling by… |
| 1 March (spring/summer drop) |
mid-December |
late November |
| 1 June (summer) |
mid-March |
late February |
| 1 September (autumn/back-to-school) |
mid-June |
late May |
| 1 December (Christmas / gifting) |
early September |
mid-August |
| 14 February next year (Valentine's) |
mid-November |
late October |
October is when next year's Valentine's Day underwear gets decided — not December. Sea freight alone is 30–35 days; bulk production is 45–60; sampling and fabric booking eat November. Brands that start in December end up paying for air freight or missing the window.
4. Five things that reliably add a week
- Lab dips that do not match. Each round trip is 5–7 days. Send a physical colour standard, not a phone photo.
- Labels and trims arriving late. Care labels, hangtags and polybags are buyer-supplied items more often than people expect — book them with the PO, not after the PP sample.
- Changing the tech pack after PP approval. Any change after approval re-opens sampling and pushes the production slot.
- Waiting for the final AQL inspection to book freight. Book the sailing date in parallel with production; move it only if the inspection fails.
- Chinese New Year. Factories close for 2–3 weeks around the Spring Festival, with a ramp-down before and a slow ramp-up after. Plan a minimum of 45 days of buffer around it.
5. What we commit to on timing
- Quotation within 24–48 hours of receiving product, quantity, fabric preference and destination market.
- Sampling in 7–10 days (10–14 for sleepwear and sport bras).
- Written production schedule with the PP sample approval: sampling date, bulk start, inspection window, sailing date.
- AQL 2.5 pre-shipment inspection before anything leaves the factory, with the report shared before shipping documents are issued.
Send your target in-store date and we will return the reverse-planned schedule with the PO cut-off — [email protected] · WhatsApp +86 186 5081 3853.
