The ASSEMBLY LINE • Poncho Shirt Sewing Pattern (XS - 3XL)
The Poncho Shirt Sewing Pattern by The Assembly Line blends the tailored look of a classic shirt with the comfort and ease of a poncho-style silhouette. Designed as a half-circle shape, this shirt drapes beautifully and offers a modern, relaxed fit.
Key features include a traditional button-down front, classic shirt collar, and clever construction with seams at the shoulders and underarms to shape the garment. Perfect for lightweight to mid-weight fabrics, this is a versatile piece that works well dressed up or down.
You can make it as a plain style or choose to customise it with a panel, or a frill for added flair. The checked version is pictured with the Culottes Sewing Pattern which have been lengthened by 15cm.
Skill level ∙ intermediate.
This is a paper pattern available in sizes S, L, and 3XL, fitting XS–3XL. Seam allowances are included in the pattern. The pattern comes carefully packaged in an envelope together with step-by-step sewing instructions including variations of the techniques required to complete your project.
Suggested fabrics • light to medium-weight fabrics work best.
Fabric requirements (Plain shirt without panel or frills) •
110 – 120 cm fabric width • S 1.4 m / L n/a / 3XL n/a
140 – 150 cm fabric width • S 1.2 m / L 1.3 m / 3XL 1.4 m
Trims needed • matching thread / fusible Interfacing / shirt buttons, for Size S: 6 x 10mm; for L - 3XL 7 x 10mm
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.

