THE ASSEMBLY LINE • Lab Coat Sewing Pattern (XS - 3XL)
Printed sewing pattern • Sizes XS–3XL • Skill level: Intermediate
The Lab Coat Sewing Pattern by The Assembly Line is a modern, workwear-inspired coat with a clean, understated silhouette. Designed in Sweden, this versatile unlined coat combines practical detailing with The Assembly Line’s distinctive Scandinavian aesthetic, creating an easy layering piece that can be interpreted in a variety of fabrics.
The mid-length design features a clean round neckline, concealed button front and generously sized patch pockets. Fabric choice can completely transform the finished garment — sew it in canvas, twill or denim for a structured workwear look, or choose linen or a lighter woven fabric for a softer coat, cardigan or kaftan-style layer.
The design can also be simplified by replacing the concealed fastening with visible buttons and omitting the lower pockets, offering plenty of scope to make the pattern your own.
Perfect for:
- Modern workwear-inspired coats and layering pieces
- Intermediate sewists looking for a versatile outerwear project
- Creating different looks from one adaptable pattern
- Structured or softly draping woven fabrics
Skill level • Intermediate
Pattern details:
- Printed sewing pattern with clear, step-by-step instructions
- Sizes XS–L and XL-3XL
- Unlined mid-length coat
- Clean round neckline
- Concealed button front
- Large patch pockets
- Versatile design that can be adapted with visible buttons or without lower pockets
Suggested fabrics: For a more structured, workwear-inspired coat, choose heavier woven fabrics such as:
- Canvas
- Cotton twill and cotton panama
- Denim
- Corduroy
For a lighter, more dress-like version, consider:
- Linen
- Lightweight denim
For an even softer cardigan or kaftan-style interpretation, choose a lightweight woven fabric and consider using visible buttons and omitting the pockets.
Fabric requirements • Please see last image for fabric requirements.
You will also need:
- Matching thread
- 5 x 25mm sew-in buttons
- 0.6m interfacing
Sewing tips:
- Choose your fabric according to the silhouette you want to achieve — heavier fabrics will emphasise the workwear styling, while lighter cloth will create a softer layer
- Consider visible buttons as an alternative to the concealed fastening for a different look
- Omitting the lower pockets creates a cleaner, more minimal interpretation of the design
Why we recommend this pattern: The Lab Coat is an adaptable layering piece that demonstrates how much a single pattern can change through fabric and finishing choices. Its clean lines and practical details make it particularly suited to creating a considered, contemporary handmade wardrobe.
Part of our curated collection of The Assembly Line sewing patterns, designed for modern, wearable wardrobes.
Browse our full collection of sewing patterns for modern handmade wardrobes.
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