## Common ground
Both options refer to shoulder straps, which are used to carry or support weight across the shoulders.
## Options at a glance
**3926.90 – Plastic-made straps**
- **Defining trait:** Made primarily from plastic or synthetic polymer materials.
- **Typical examples:** Plastic backpack straps, molded nylon-reinforced straps, disposable medical strap components.
- **Best fit when:** The strap is rigid, lightweight, and made from injection-molded or extruded plastic.
**6307.90 – Textile-made straps**
- **Defining trait:** Constructed from woven, knitted, or non-woven fabric (e.g., cotton, polyester, nylon).
- **Typical examples:** Fabric backpack straps, shoulder bags with textile straps, sports gear straps.
- **Best fit when:** The strap is flexible, breathable, and made from fabric or fiber-based materials.
## Key differences
| Feature | 3926.90 (Plastic) | 6307.90 (Textile) |
|--------------------|--------------------------|----------------------------|
| Material base | Plastic/synthetic polymer | Woven/knitted fabric |
| Flexibility | Rigid or semi-rigid | Flexible, soft |
| Common use cases | Disposable, industrial | Apparel, bags, sports gear |
## How to choose
- Is the strap made of molded or extruded plastic? → 3926.90
- Is it woven, knitted, or stitched from fabric? → 6307.90
## Overlaps & pitfalls
A strap may combine both materials (e.g., textile with plastic buckles), but the **primary material** determines classification. If the strap is mostly fabric, use 6307.90; if mostly plastic, use 3926.90. Do not prioritize buckle type—focus on the main body material