> ## Documentation Index
> Fetch the complete documentation index at: https://docs.luxima.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Materials

> Enter a product's fibre composition and weight.

The **Materials & composition** section holds what the product is made of. The passport shows it, and LUXIMA uses it to estimate environmental impact.

![The Materials and composition section with fibre composition set to Required, a total weight of 650 g, two material rows for wool and polyester with their share, weight and recycled tick box, a composition total of 100%, and the lining, part and animal-origin options below](https://mintcdn.com/mbp-network-technology-limited/gX0z2SAsU9GXW_NO/images/products/materials.png?fit=max\&auto=format\&n=gX0z2SAsU9GXW_NO\&q=85\&s=62bdf09d6234c139ed2a79578408553e)

A product made of 80% recycled wool and 20% polyester

## Is a fibre composition required?

Start with the **Fibre composition** choice:

* **Required (a textile product)**
* **Not required: not a textile product**
* **Not required: Annex V product (a toy, a badge…)**

## Total weight

Enter the finished product's weight per unit in **Total weight (g)**. Leave it empty if you do not know it.

With a total weight set, LUXIMA works out each material's weight from its share. If you entered material weights without a total, click **Use as total** to add them up.

## Add materials

Click **Add material** for each fibre and fill in:

* **Material.** Type a name, such as Merino Wool, and pick from the suggestions.
* **Share %.** Its share of the fabric.
* **Recycled.** Tick it if the material is recycled.

The line under the list shows the composition total.

> [!WARNING]
>
> The shares must add up to 100%. Otherwise you cannot save: "Material composition must add up to 100% before saving."

## Linings and parts

Some garments have fabrics that are stated separately on the label.

* **Lining.** Click **Add a lining**, then **Add lining material**. The lining's shares must add up to 100% on their own.
* **Parts.** A part made of another fabric that is 30% or more of the garment's weight, such as knit sleeves, is stated on its own. Click **Add a part**, name it (for example "Sleeves") and add its materials. Each part's shares must add up to 100% on their own.

## Animal-origin parts

Tick **Has leather, suede, horn or fur parts** if it applies. The passport then says "Contains non-textile parts of animal origin".

## Estimated compositions

If a composition was estimated by AI, for example during an import, a banner says so, and the passport marks it as estimated. Check the materials, correct them if needed, and click **Confirm composition**.


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