
Professional fashion design workspace with tech packs, CAD sketches and fabrics used to develop gymwear, golf fashion, womens activewear and streetwear ranges
The root problems I see most often
- No clear product strategy. Big wish lists and no focus. Start with a tight range that answers one customer and one use case well.
- Skipping tech packs. Factories cannot read minds. Professional tech packs convert vision into measurements, fabrics, trims and construction.
- Factory first, product second. The order should be concept, CADs, tech packs, then sourcing and sampling.
- Unrealistic timelines. Expect multiple fit rounds. Rushing creates errors and cost.
- Weak fabric knowledge. Fabric drives performance, price and lead time. Decide early to avoid rework.
What successful founders do differently
- Focus on fewer, better products. Three excellent pieces beat ten average ones.
- Invest in design and detail. Clean CADs and complete tech packs build trust with suppliers.
- Stage the process. Brief, design, review, tech pack, sample, fit, revise, approve.
- Use the right partners. Pair a fashion designer with sourcing and production specialists for smooth delivery.
- Plan for scale. Set naming, labelling and colour rules now so growth is easier later.
Category specifics that shape your plan
Gymwear and general activewear
Performance lives in fabric and fit. Focus on stretch recovery, wickability and return to shape after wash. Build clear rules for waistbands, gussets and seam placement. Test size sets on real bodies before sign off.
Womens activewear
Support and comfort create repeat business. Map pressure points, test squat proof levels, refine rise and waistband structure. Grade carefully so sizes track with the target customer rather than a generic chart.
Golf fashion
Blend technical function with refined style. Prioritise drape, breathability and easy care. Keep branding confident but discreet. A tailored silhouette with clean collars and considered sleeve lengths reads premium on course and off course.
Streetwear
Identity is the product. Lock down graphics, placements and print methods early. Choose blanks or custom blocks that match your brand language. Trims, labels and packaging lift you out of basic merch territory.
Corporate sportswear teams
Durability and consistency matter most. Write fabric and colour standards, test for pilling and colour fastness, and document size rules so reorders land perfectly across seasons.
An efficient development roadmap
- Brief and range aim: customer, use case, price, volumes, deadlines.
- Design and CADs: silhouettes, colour, trims and branding laid out clearly.
- Tech packs: measurements, construction notes, fabrics, labels and care.
- Sourcing and sampling: match factories to product type. Start with proof of concept samples.
- Fit and iterate: test movement, comfort and wash. Record changes in the pack.
- Pre production sign off: confirm specs, colour standards and packaging.
If you follow the steps above, you reduce waste, speed up approvals and give factories the materials they need to succeed first time. For deeper production support see my page on fashion manufacturing.
FAQs
Do early stage brands need tech packs?
Yes. Tech packs protect quality, control cost and remove guesswork. They are essential for any factory relationship.
How many products should I launch with?
Three to six pieces is a strong start for most categories. Add depth once you prove demand and fit.
Can a factory handle design as well?
Some offer design input, but relying on it leads to generic results. A dedicated fashion designer keeps your identity sharp.
How long does product development take?
Allow three to six months from brief to approved samples, depending on complexity and sourcing route.
About my work
I help brands move from idea to production with clear design, CADs and factory ready tech packs. I work across sportswear, activewear, streetwear and golf. If you need structured support for sourcing and sampling I partner with proven specialists in the UK, Portugal, Turkey and Asia to manage that next stage with you.
Work with me: I design collections that balance creativity and commercial sense, then prepare accurate packs that factories respect. Two decades of experience as a fashion designer across performance and lifestyle. See services and recent projects at jmitchelldesign.co.uk and JMD x Fashion Consultancy.



