Footwear Development

Guides

Double i Works News & Updates

The footwear development timeline, phase by phase

Home / Guides / Development timeline

The footwear development timeline, phase by phase

A new shoe or boot usually takes 8 to 14 months from an approved brief to delivery. Here's where that time goes, what you approve at each step, and how to keep the calendar from slipping.

By Iiley Thompson Sr.Updated October 7, 20269 min read
The short answer

Most new footwear takes 8 to 14 months from an approved brief to delivery: 2–4 weeks for the brief, 4–8 for design and specs, 6–10 for lasts, tooling, and first samples, 8–16 for sample rounds and wear testing, and 12–20 for production, inspection, and freight. Six months is possible with a narrow line and fast decisions.

Key takeaways
  • Sampling and production are the two longest phases. Each sample round is built, shipped, reviewed, and revised, and that takes weeks.
  • Most delays start with late decisions and late changes. Factories are rarely the first cause of a slip.
  • Lunar New Year can take a month or more out of an Asian factory calendar. Plan every milestone around it.
  • Build the calendar backward from the date product must be in your warehouse.
  • A six-month launch is possible with one focused category, a decision-maker on call, and work running in parallel.

What are the phases of footwear development?

Every footwear program moves through the same five phases. The durations below are what we see on a typical new line. Each phase ends with a decision that belongs to you, and the calendar only holds if those decisions land on time.

PhaseWhat happensTypical durationWhat you approve
1. Brief & program planCustomer and use case, retail price and target FOB, line plan, calendar, factory shortlist2–4 weeksThe brief, price targets, and the in-warehouse date
2. Design & specificationConcepts, tech packs, bill of materials, last selection, material and color sourcing4–8 weeksDesign direction, tech packs, materials
3. Lasts, tooling & first samplesLast built or adapted in the sample size, patterns made, sample bottoms produced, first prototypes built6–10 weeksThe prototype's look and construction, and changes for round two
4. Sample rounds & wear testingRevised samples, fit samples across sizes, lab tests, field wear tests, costing negotiated each round8–16 weeksFit, test results, final FOB, colorways
5. Production, QC & freightGrading and production tooling for the full size run, confirmation samples, purchase order, material booking, production, inline and final inspection, freight and customs12–20 weeksConfirmation sample, order quantities and size curve, release to ship

The phases overlap more than a table suggests. Long-lead materials get ordered during sampling. Production tooling for the full size run gets cut as soon as fit is signed off. A well-run calendar keeps several of these tracks moving at once. You can see how we run each step on how we work.

What happens in each sample round?

Most programs take two to three sample rounds. Each round runs roughly three to six weeks once you count building the pairs, courier time, your review, and the factory's revisions. Each type of sample has a different job.

SampleIts jobWhat to check
PrototypeFirst physical version of the design, often in substitute materialsProportions, construction, design intent
Fit sampleBuilt on the production last in several sizesFit, grading across the run, comfort over hours of wear
Wear-test samplePairs for testers in real conditionsDurability, comfort, waterproofing, traction over weeks of use
Salesman sample (SMS)Near-final pairs for selling to retail buyers and for photographyFinish, color, and materials close to production
Confirmation sampleThe signed reference production is held toEvery detail, matched to the tech pack and bill of materials

Early samples are usually built in one sample size, commonly a men's 9 or a women's 7. That's why fit has to be checked across the run before production tooling is cut. A shoe can fit well in a 9 and badly in a 13 if the grading is off. The confirmation sample comes last, and once you sign it, it becomes the standard every production pair is inspected against.

Wear testing takes the most calendar time in this phase, and it's the step brands most want to shorten. Lab tests for bond strength, flex, abrasion, slip resistance, and waterproofing can run in parallel with other work. Field testing can't be rushed. Testers need enough hours in the product, in the conditions it's built for, to find what a lab won't. We cover how we run it in fit, lasts, and wear testing.

Where do footwear programs slip, and how do you prevent it?

Programs rarely slip in one big event. They slip a week at a time, and the weeks compound because each sample round and production slot is booked in sequence.

Where it slipsWhat happensHow we prevent it
Late approvalsComments that arrive a week late miss the factory's sample-room slot, and one week becomes threeEvery approval has a date and an owner on the calendar. Comments go back consolidated, in one pass.
Changes after toolingA design change after molds are cut means modified tooling and another sample roundLock the last and the bottom before production tooling. Save new ideas for next season.
Material lead timesCustom leather colors, membranes, and branded components can take longer than the shoeOrder long-lead materials during sampling, with the risk understood and approved
Fit found lateProblems in the outer sizes show up after the full run is tooledFit samples across the size run before production tooling
Wear test in the wrong seasonA cold-weather boot tested in July tells you very littleSchedule field tests in the season the product is built for, and set the calendar around it
Failed lab testsA bonding or waterproofing failure forces a fix and a retestTest round-one materials and constructions early, then retest the final build
Factory capacitySmall orders get pushed when a factory's largest customers hit their peakBook capacity early with a forecast, and choose factories where your volume matters
FreightPort congestion and peak shipping season add weeksShip ahead of peak and keep a buffer between landing and launch

The first three rows are all decided on the brand's side of the table. That's where a calendar is easiest to protect.

How do factory seasons and holidays affect the calendar?

Footwear factories run on a calendar of their own, and the biggest event on it is Lunar New Year. Factories in China, and in Vietnam for Tết, close for the holiday, usually for two to four weeks between late January and February. The real disruption runs longer. Material suppliers slow down before the break. Afterward, workers return over several weeks, some don't come back, and lines take time to reach full output. In 2027, Lunar New Year falls on February 6.

We plan as if work stops about two weeks before the holiday and runs at reduced speed for two to four weeks after it. A sample round sent to the factory in mid-January often comes back in March. A production order that isn't on the line before the break will ship later than the date the factory first gave you.

Other dates belong on the calendar too:

  • China's National Day holiday in the first week of October.
  • Eid al-Fitr in Indonesia and other Muslim-majority sourcing countries, which moves earlier each year.
  • Summer and year-end shutdowns at U.S. factories and material suppliers.
  • Peak ocean shipping season in late summer and fall, when container space is tight ahead of holiday retail.

Factory capacity has seasons as well. Factories fill their lines around the delivery windows of their largest customers, and a smaller order competes for the same slots. Booking capacity early, with a forecast the factory can plan around, is how a smaller brand stays on the line.

Can you develop and launch a shoe in six months?

Yes, under the right conditions. A typical program runs 8 to 14 months, and a six-month launch is possible when the scope is tight and every decision lands on time. A six-month calendar requires:

  • One focused category. A single product type with a clear use, such as one waterproof hunting boot or one deck shoe. A full line won't fit in six months.
  • Decisions in days. One decision-maker with real authority who answers sample comments within days.
  • Parallel work. Lasts, tooling, and long-lead materials start while design is still being finished, with that risk understood and funded.
  • Proven parts where possible. An existing last or bottom unit takes weeks out of tooling.
  • A factory that commits. Development capacity, a dedicated team, and priority in the sample room.
  • Senior hands at the factory. Problems get solved on the floor the same day instead of by email across time zones.
  • Budget for speed. Samples by air courier, expedited tooling, and sometimes air freight for the first shipment.

What a six-month calendar can't do is absorb mistakes. There's no room for a third sample round or a failed wear test. For a brand's first footwear program, we usually recommend the standard calendar and putting the extra time into fit and testing.

How do you build a footwear development calendar?

Start at the end. Pick the date product needs to be in your warehouse, then work backward.

  1. In-warehouse date. Leave a buffer for receiving, photography, and getting product to customers or retailers.
  2. Ex-factory date. Subtract ocean freight, port, and customs time, typically four to eight weeks from Asia.
  3. Production and inspection. Subtract the factory's production lead time, plus inline inspection and a final inspection against an agreed AQL level. A failed final inspection is a schedule event, so leave room for it.
  4. Purchase order and material booking. Subtract material lead times. Leather and custom components often set this date.
  5. Confirmation sample approval. The last sign-off before production.
  6. Fit and wear-test sign-off. Allow time for one retest if something fails.
  7. Sample rounds, first prototype, design, and brief. Each with its own date and its own owner.

Then lay the factory's holidays and peak seasons over it, and move any milestone that lands in the weeks around Lunar New Year. If the brief date that falls out of this is already behind you, the calendar is telling you to narrow the line or move the launch.

For the budget side of the same program, read what it takes to launch a footwear line. If you already have a launch date in mind, start a project and we'll build the calendar backward from it.

IT
Iiley Thompson Sr.

I founded Double i Works in 2019, after more than three decades developing footwear at Nike, adidas, Under Armour, and Huk. My full background

Frequently asked questions

How long does it take to develop a shoe?

For most new footwear, 8 to 14 months from an approved brief to product in your warehouse. Development itself, from brief to final sample approval, usually takes five to nine months. Production, inspection, and freight add roughly three to five more.

How long does it take to make a shoe prototype?

Typically 6 to 10 weeks after design and tech packs are complete, because the last, patterns, and sample bottom have to be made first. It can be faster when the shoe uses an existing last and an existing outsole.

How many sample rounds does a new shoe need?

Two to three is typical. Each round takes roughly three to six weeks including courier time and your review. A new last, a new construction, or late design changes can add a round.

How long does footwear production take?

Plan on 12 to 20 weeks from confirmation sample to delivery. That covers production tooling across the size run, material booking, production, inline and final inspection, and freight. Material lead times and the factory's capacity at the time of your order decide where in that range you land.

When should we start if we want boots in our warehouse next fall?

For boots in your warehouse by late summer, an approved brief should be in place about a year earlier. That puts Lunar New Year in the middle of your sampling, so plan around it. If it's already fall and you want boots next August, start now or narrow the line.

What is the difference between a fit sample and a confirmation sample?

A fit sample is built on the production last, often in several sizes, to prove fit and grading before production tooling is cut. A confirmation sample comes at the end of development. It is built to the final tech pack and materials, and once you sign it, production is inspected against it.

Start a project

Tell us what you're building.

Share the brand, the category, and where you are today. If it's a fit, you'll talk directly with me. We're glad to sign your NDA before the first call.

Based
Cannon County, Tennessee
Factories
United States and Asia
Iiley Thompson