Pattern Making · Technical Design · CLO3D
Patterns built with an understanding of fit, proportion and how a garment is made.
FORMER HEAD PATTERN MAKER AT COS LONDON
Portfolio
A closer look at my work, from pattern development
to the garment in CLO3D.
ABOUT LEILA
Tailoring craft.
Digital development.
Creative thinking.
Leila Nyberg McAleer · Newburyport, Massachusetts

A little about me
and my work.
I’m Leila, a freelance pattern maker based in Newburyport, Massachusetts. I work with 2D pattern making, technical design and CLO3D, helping designers and brands develop their ideas into garments.
I spent 14 years working in Stockholm and London, including as Head Pattern Maker at COS London, and with H&M, Tiger of Sweden and Bodymetrics. My background is in traditional patternmaking, tailoring and draping, with extensive experience using Lectra.
I enjoy working with designers, trying out ideas and finding ways to achieve the shape and fit they have in mind. I build from blocks or draft from scratch, using CLO3D to explore shape, volume and fabric drape before physical sampling.
My experience with factories helps me consider construction as I develop the pattern. I also provide construction notes, measurement charts and fit comments.
Sizing is a particular interest of mine: how can we make clothes that fit different bodies better? I consider comfort and movement alongside appearance.
I work remotely with independent designers and established brands, and can also come in to work with local teams.
Explore my experienceAreas of Expertise
- 2D & 3D garment development
- CLO3D & virtual prototyping
- Pattern development & draping
- Fit, proportion & construction
- Collaborative problem-solving
How I can help
Freelance pattern making, technical design and CLO3D development for fashion brands. Based in Newburyport, Massachusetts, working remotely.
01Patternmaking
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Pattern making services for designs developed from sketches, references or existing garments. I draft from scratch or build from blocks, with attention to balance, silhouette and construction.
Explore patternmaking02CLO3D development
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From 3D development to physical sampling
CLO3D pattern making and 3D garment development let us explore shape, fabric and proportions through virtual sampling. You can review images or a shared 3D view without needing the software yourself.
Once we’re ready to sample, I provide the patterns and construction notes for your sample maker or factory. Working through these details digitally helps reduce unnecessary sample rounds and gives the first physical sample a stronger starting point.
Support with existing CLO files
Already have CLO files from your vendor? I can review and adjust the patterns, fit and simulation settings, investigate differences between versions and help bring the garment in line with your intended design.
03Fit & pattern refinement
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I review garment fit on existing patterns or samples, adjust balance and proportions, and translate fit comments into pattern revisions. I work with your factory or technical team to communicate and follow through on adjustments.



I work with standardised Alvanon avatars in a range of sizes as a starting point for garment development, adapting the fit to your brand’s sizing standards and intended silhouette.
04Final deliverables
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My technical design services include measurement charts, construction notes and fit comments to support clear communication with your sample maker or factory. Final deliverables can include DXF or PDF patterns and garment renders, with scope agreed before work begins. Grading can be discussed.
Printable PDF patterns
I can provide patterns as full-scale PDF files laid out for 36-inch-wide printing, with seam allowances, notches, grainlines, piece names, cutting quantities and relevant construction notes. The file format and pattern information are agreed to suit your sample maker or factory.
EXPERIENCE & EDUCATION
A foundation
in patternmaking.
COS, London
Head Pattern Maker
H&M · Tiger of Sweden · Bodymetrics
Patternmaking in Stockholm and London
Tillskärarakademin, Stockholm
Fashion & patternmaking
ESMOD, Paris
Fashion & apparel design
CLO3D
CLO certificate, 2024 · Digital garment development since 2022
Tools & methods
CLO3D · 14 years of Lectra experience
Flat patternmaking · Blocks · Virtual fitting
NOR&ELLE DESIGNS
Classic silhouettes.
With a twist.
My own designs explore tailoring, clean lines
and unexpected details.
READY-MADE SEWING PATTERNS
Coming soon.
The first patterns are in development.





