THE ASSEMBLY LINE • Billow Blouse Sewing Pattern (XS - 3XL)
Printed sewing pattern • Sizes XS–3XL • Skill level: Advanced beginner
The Billow Blouse Sewing Pattern by The Assembly Line is a modern, voluminous blouse that captures the relaxed yet refined aesthetic of contemporary Scandinavian design. With its soft gathers, fluid shape and statement sleeves, it’s an effortlessly stylish piece that works beautifully as part of a modern handmade wardrobe.
This blouse pairs beautifully with the High Waisted Trousers by The Assembly Line for a modern, balanced silhouette that feels both relaxed and refined — an effortless combination for a contemporary handmade wardrobe.
Key features include a rounded neckline with gentle gathering and raglan sleeves that fall into softly elasticated cuffs, creating volume without feeling overwhelming. The silhouette is loose and easy to wear, making it ideal for both everyday styling and more elevated looks depending on your fabric choice.
Perfect for:
- Modern blouses with volume and movement
- Sewists looking for an easy-to-wear statement piece
- Lightweight fabrics that showcase drape and texture
Skill level • Advanced beginners
Pattern details:
- Printed sewing pattern with step-by-step instructions
- Sizes XS–3XL
- Option to extend into a tunic or dress
Suggested fabrics: This pattern works beautifully in light to midweight woven fabrics such as:
- Cotton lawn or poplin
- Linen and linen blends
- Tencel or viscose
- Silk or crepe de chine
- Soft wool crepe
Fabric choice will influence the overall look, drapey fabrics enhance the fluid silhouette, while more structured cottons create a sculptural shape. Browse our full collection of dressmaking fabrics for modern handmade wardrobes.
Fabric requirements • Please see last image for fabric requirements.
You will also need:
- Matching thread
- 10mm wide elastic
Sewing tips:
- Use a lightweight fabric to enhance the blouse’s soft drape and movement
- Take care when distributing gathers evenly around the neckline
- Press gently to maintain the volume through the sleeves and cuffs
Why we recommend this pattern: The Billow Blouse is one of those patterns that feels both on-trend and timeless. Its relaxed volume and thoughtful design details make it a joy to sew and an easy piece to wear again and again.
Browse our full collection of sewing patterns for modern handmade wardrobes.
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