## Common ground
All options describe cooler bags made from materials that provide insulation and protection for temperature-sensitive items.
## Options at a glance
**3926.90 – Made of plastic material**
- **Defining trait:** Constructed primarily from plastic (e.g., polyethylene, PVC, or foam), often with insulating layers.
- **Typical examples:** Disposable insulated lunch bags, reusable plastic-coated cooler bags.
- **Best fit when:** The bag is lightweight, flexible, and uses plastic as the main structural or insulating material.
**4202.1X – Made of leather, composition leather, sheeting of plastics, textiles, vulcanised fibre, paperboard, or covered with such materials**
- **Defining trait:** Uses a combination of materials, including leather-like or textile fabrics, often with outer layers of plastic or fabric; may include stitching and durable construction.
- **Typical examples:** Premium insulated tote bags with fabric or leather exterior, cooler bags with woven textile lining.
- **Best fit when:** The bag has a visible fabric, leather, or composite material exterior, even if partially covered in plastic.
## Key differences
| Feature | 3926.90 – Plastic Material | 4202.1X – Mixed Materials (incl. textiles/leather) |
|-----------------------|----------------------------------|----------------------------------------------------|
| Primary material | Plastic (e.g., foam, film) | Fabric, leather, or composite coverings |
| Insulation method | Built-in plastic insulation | Often layered with fabric or textile lining |
| Durability & feel | Lightweight, flexible | Sturdier, more premium texture |
## How to choose
- Is the bag primarily made of plastic (e.g., foam, film, or coated plastic)? → 3926.90
- Does it have a visible fabric, leather, or paperboard exterior? → 4202.1X
## Overlaps & pitfalls
A cooler bag with a plastic-coated fabric exterior may fit both categories. In such cases, prioritize the **main structural material**: if plastic is dominant (e.g., thick foam layer), use 3926.90; if fabric or leather is visible and primary, use 4202.1X. The label “wholly or mainly covered” in 4202.1X allows for plastic coatings, so check the material composition carefully