Elastic Band in Garment Construction: Waistbands, Drawstrings & Seam Techniques
🧵 What Is an Elastic Band in Sewing?
An elastic band is a stretchable strip inserted into garment seams or casings to provide flexibility, shape retention, and comfort. It’s commonly used in waistbands, hems, and cuffs for clothing such as shorts, skirts, leggings, and activewear.
Elastic can be sewn into a folded edge and processed together with a rolled hem—creating a smooth, functional waistband in a single step using specialized folding equipment.
🔧 Elastic Band Construction Methods
🔸 One-Step Elastic & Hem Finishing
- The elastic band is sewn inside a folded edge, helping flatten and secure the waist or hemline.
- Simultaneously, a rolled hem is stitched at the edge.
- Both actions are completed with a specialized folding and sewing machine.
- This method is ideal for mass production where speed and uniformity are key.
🔸 Drawstring Integration
- Drawstrings are made using long fabric strips sewn or folded into cords.
- The cords are inserted through a casing after the shorts are sewn.
- Two metal eyelets or grommets (Figure 10.13e) are positioned at the center front for the drawstring to enter and exit.
- Folding machines create a clean, minimal seam appearance on the exterior.
📌 This method is not only functional but also supports design detailing for modern casualwear.
👗 Elastic Band & Drawstring Use Table
| Garment Type | Elastic Use | Placement Area | Construction Method | Notes |
|---|---|---|---|---|
| Shorts | Waistband & Drawstring | Waistline | Elastic in folded edge + casing | Grommets at center front |
| Sports Leggings | Full Waistband Elastic | Waistband | Covered elastic with flat seam | Seamless appearance |
| Pajama Pants | Elastic Waistband | Waistline | One-step folding hem + elastic | Comfortable and adjustable |
| Swimwear Bottoms | Elastic Edging | Waist & Leg openings | Enclosed elastic in folded edge | Keeps shape in water |
| Hoodies / Jackets | Drawstring Cord | Hood opening | Folded cord with eyelets | Optional decorative stoppers |
🪡 Best Practices for Sewing with Elastic
✔️ Use elastic specifically designed for apparel (soft, braided, or woven)
✔️ Pre-stretch the elastic slightly before sewing to avoid puckering
✔️ If using a folding machine, ensure proper alignment and tension setting
✔️ Always secure the ends of elastic or drawstrings to prevent shifting
✔️ Reinforce eyelets or grommets with interfacing for durability
🎯 Elastic Bands as Functional and Decorative Elements
- Elastic bands can be hidden for subtle shaping or exposed as a design feature.
- Drawstrings offer adjustability and style—especially in athleisure and youth fashion.
- These elements are commonly used to produce belts, cords, shoulder straps, and tie details for accessories or layered garments.
🎨 Tip: Match cord or drawstring color with garment or contrast for visual impact.
📌 Summary
Elastic bands are a core component in modern clothing—offering flexibility, comfort, and clean construction. Whether used in waistbands, drawstring casings, or rolled hems, elastic allows garments to adapt to body movement while remaining visually sleek. With specialized folding machines and minimal visible seams, manufacturers can achieve efficient production and high-end finishes.
