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Pip Cooper is a technical outerwear product developer and pattern cutter specialising in fit-led garment development, with over 15 years of industry experience. She helps brands define their fit strategy and visualise their customer body profile before development, creating a strong foundation for garment fit and reducing returns.

Her work combines pattern cutting, tech packs, size guide creation and 3D workflows to help start-ups and growing brands achieve more accurate first samples and well-fitting garments.

Pip previously worked in a technical outerwear development studio and was part of a team awarded an ISPO Gold Award for innovation. She also has extensive experience working with factories and sample development, and trained in creative pattern cutting at London College of Fashion.

She is particularly passionate about helping founders and emerging brands build better-fitting garments from the start, creating a stronger fit foundation and enabling a more reliable starting point for factory sampling.

Featured Partners are carefully selected individuals with proven experience, exceptional service standards, and are considered to be true experts in their field. Each partner has been personally reviewed by the Entreupia team and approved based on expertise, delivery quality, and long-term potential.

ISPO Gold Award–winning outerwear developer with 15+ years’ experience. Pip helps brands define fit strategy and develop patterns and tech packs through physical and 3D workflows, enabling more accurate first samples and better-fitting garments.

Pip Cooper Freelance - Technical Product Developer & Pattern Cutter

Apr 2020 - Present | Remote

Freelance technical product developer specialising in functional outerwear and performance apparel.

I support founders and growing brands in translating concepts into well-fitting, production-ready garments, combining traditional pattern cutting with modern 3D development tools.

Key areas of expertise include:

- Pattern cutting and block development

- Physical prototyping and mock-ups combined with 3D garment development (CLO3D)

- Full graded tech pack creation

- Brand size guide and grading development

- Fit strategy and garment sizing

- Sample review and factory communication

To date I have supported 25+ start-ups and small brands, helping founders streamline product development while improving fit accuracy and technical documentation.

Fashion Delivered - Product Developer

Jul 2019 - Mar 2020 | Tunbridge Wells, UK

Worked within a product development and sourcing consultancy supporting apparel brands from concept through to production.

Responsibilities included:

- Garment development

- Creating technical packs for manufacturers

- Supporting fabric sourcing and production planning

- Liaising with factories and managing development timelines

Sleepy Wilson - Product Developer

Jul 2019 – Mar 2020

Developed the brand’s debut collection of luxury silk sleepwear.

Responsibilities included:

- Creating tech packs and development documentation

- Range planning and collection development

- Fabric sourcing and trade show research (including Première Vision and Future Fabrics Expo)

- Managing sample development and first production QC

- Coordinating with overseas manufacturers

Páramo Directional Clothing - Product Developer / Product Realisation & Planning Coordinator

Mar 2011 – Jul 2019

Worked within a technical outdoor apparel company developing high-performance garments.

Key responsibilities included:

- Pattern cutting for performance outerwear

- Working with designers and field testers to refine product functionality and fit

- Coordinating sample development and factory communication

- Grading garments and maintaining fit consistency across product ranges

- Managing production approvals and quality control

During this time I contributed to the development of innovative technical garments and was part of a team awarded an ISPO Gold Award for innovation.

Marcus Constable - Pattern Cutting Assistant

Jul 2009 – Mar 2010

Supported pattern development and garment construction within a specialist pattern cutting studio.

• Páramo Directional Clothing – Technical outdoor apparel development, pattern cutting, product development and sampling coordination.

• Start-up outerwear and sportswear brands – Supporting founders through early product development, including pattern cutting, tech packs, fit development and size guide creation.

Portfolio & Case Studies

Selected Client Work

Selected work that demonstrates the capabilities of our partners.

Testimonials

A few words from clients who chose to work with Philippa.

“I’ve had the pleasure of working with Pip on the development of my first technical prototype, and her pattern-making expertise has been both outstanding and invaluable. Pip combines precision, excellent (and prompt!) communication, and a genuinely solutions-focused approach, exactly what you need when you're building a product from scratch. Her work has massively improved the quality and direction of the prototype, and I’d recommend her to anyone looking for a reliable, highly skilled pattern maker.”

“Thanks for the huge role you had in making it happen Philippa. I've loved working with you. You've been so patient, considerate, and insightful through every step of the process. Your superlative technical ability, high level of attention to detail, and expertise has turned this from a rough idea into a smooth reality. You guided me through the various, complex stages of product development with considered aplomb, and I'm delighted with how the product has turned out. I'm very, very lucky to work with you. I hope I get to do so again in the future.”

“I am extremely happy with the work Pip has done. She has been an excellent communicator throughout, is thorough in her approach, and it is evident she has a wealth of subject knowledge. I'm very happy with the service provided and look forward to working with her again in the future.”

“Pip’s tech pack was a masterpiece - such an incredible piece of work. I’m chuffed! My expectations were for someone with a high level of technical experience and skill, and Pip clearly delivered. What went beyond expectations was her patience and pragmatic guidance when I, as a non-technical founder, had ideas that needed vetting. Her ability to translate ideas into practical solutions saved me time and money, and the way she explained technical decisions made the whole development process much easier to navigate.”

“Philippa has been absolutely fabulous to work with. She has a fantastic work ethic and I highly recommend her for technical packs and clothing development.”