THE ASSEMBLY LINE • Drop Waist Dress & Top Sewing Pattern (XS - L)
Printed sewing pattern • Sizes XS–L • Skill level: Advanced beginner
The Drop Waist Dress & Top Sewing Pattern by The Assembly Line is a modern, minimalist design featuring a relaxed silhouette and soft feminine details. This versatile pattern includes three sleeveless variations, a top, a short dress and a longer dress, all defined by gentle gathers at the neckline and a subtle keyhole opening at the back.
Inspired by contemporary ready-to-wear styles, this drop waist dress sewing pattern is ideal for recreating the clean, effortless aesthetic seen in brands like COS. The silhouette feels both current and timeless, making it a beautiful addition to a modern handmade wardrobe.
Perfect for:
- Sewing a modern drop waist dress with a minimalist feel
- Recreating designer-inspired, contemporary garments
- Lightweight summer dresses and tops
Skill level • Advanced beginner
Pattern Details:
- Printed sewing pattern with clear, well-illustrated instructions
- Sizes XS–L included (see separate listing for sizes XL-3XL)
- Three variations: top, short dress and longer dress
- Optional design variations including bias binding and a ruffle hem
Suggested fabrics: This pattern works best in light to mid-weight woven fabrics such as:
- Cotton poplin
- Linen and linen blends
- Lightweight cotton sheeting
- Soft structured fabrics with gentle drape
Fabric choice will influence the final look — crisp fabrics create a more sculptural silhouette, while softer fabrics enhance the fluid, relaxed shape.
Fabric requirements • Please see final image for fabric requirements.
You will also need:
- Matching thread
- Fusible interfacing
- Optional: buy pre-made bias binding (the fabric allowance includes bis binding from dress fabric). Please see last image for the length required.
Sewing tips:
- Lightweight fabrics will enhance the soft gathers and movement of the dress
- Take care when finishing the neckline for a clean, professional result
- Consider adding the optional ruffle hem for a more statement look
- Pre-wash your fabric to allow for any shrinkage
Sewing inspiration:
If you’d like to see how this pattern looks sewn up, you can read our Drop Waist Dress Sewing Pattern Review, where we share our version made with a statement ruffle hem.
Browse our full collection of sewing patterns for modern handmade wardrobes.

