## Common ground
All options are types of ice packs used for cooling, pain relief, or treating injuries.
## Options at a glance
**3005.90 – Instant ice packs**
- **Defining trait:** Contain chemicals that react when mixed to create cold (endothermic reaction).
- **Typical examples:** Self-cooling packs with separate compartments for water and salts.
- **Best fit when:** Need immediate cooling without refrigeration; single-use or short-term use.
**3824.99 – Gel ice packs**
- **Defining trait:** Use a gel substance that remains pliable when frozen and retains cold well.
- **Typical examples:** Reusable, flexible packs for bruises, sprains, or medical use.
- **Best fit when:** Reusability and consistent cooling over time are important.
**3926.90 – Plastic ice bags**
- **Defining trait:** Made of plastic (e.g., polyethylene) and hold ice or water; not self-cooling.
- **Typical examples:** Simple bags filled with ice cubes or frozen water for temporary cooling.
- **Best fit when:** Using pre-frozen ice or water; low cost, disposable or reusable.
**4014.90 – Vulcanised rubber ice packs**
- **Defining trait:** Made from durable, flexible vulcanised rubber; often reusable and heat-resistant.
- **Typical examples:** Heavy-duty cooling packs for industrial or outdoor use.
- **Best fit when:** High durability and resistance to punctures or extreme conditions needed.
**6307.90 – Textile ice bags**
- **Defining trait:** Made of fabric (e.g., cotton, polyester) with a waterproof lining; often reusable.
- **Typical examples:** Cooling wraps or pads for sports injuries, worn directly on skin.
- **Best fit when:** Comfort and direct skin contact are priorities; soft, breathable design.
## Key differences
| Option | Material | Reusable? | Self-cooling? | Flexibility |
|-------|----------|-----------|----------------|-------------|
| 3005.90 | Chemicals in bag | No (single-use) | Yes | Rigid when activated |
| 3824.99 | Gel | Yes | No | Flexible |
| 3926.90 | Plastic | Yes | No | Moderate |
| 4014.90 | Vulcanised rubber | Yes | No | Very flexible, durable |
| 6307.90 | Fabric + lining | Yes | No | Soft, pliable |
## How to choose
- Is it self-cooling without freezing? → 3005.90
- Does it contain a gel that stays cold and flexible? → 3824.99
- Is it made of plastic and holds ice or water? → 3926.90
- Is it made of tough, rubber-like material for heavy use? → 4014.90
- Is it fabric-based with a soft, wearable design? → 6307.90
## Overlaps & pitfalls
- Gel packs (3824.99) and textile bags (6307.90) can both be reusable and flexible—choose based on material: gel for cold retention, fabric for comfort.
- Plastic bags (3926.90) and textile bags (6307.90) may look similar; the key is material: plastic vs. fabric.
- "Instant" packs (3005.90) are not reusable—confusion may arise if labeled as “ice pack” without noting activation method.
- No option clearly prioritizes function over material; user should choose based on **main purpose**: instant cooling, reusability, comfort, or durability