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+# Pck Skin Model / PSM - v1
+
+<h3> A technical documentation about the custom format PCK-Studio uses to save custom skin data.</h3>
+
+| Name | Size<br>(in bytes) | Description |
+|:-:|:-:|:-:|
+| Version | 1 | Describes the version of the file format. |
+| Anim | 4 | Animation flags for the custom skin. |
+| Box Count | 4 | The amount of [box data](#box-data) that has to be read. |
+| [Box Data](#box-data)[] | Box Count | |
+| Offset Count | 4 | The amount of [offset data](#offset-data) that has to be read. |
+| [Offset Data](#offset-data)[] | Offset Count | |
+
+
+### Box data
+| Name | Size<br>(in bytes) | Description |
+|:-:|:--:|:-:|
+| Type | 1 | Type of model part ([see PSMParentType](../PCK-Studio/Internal/FileFormats/PSMFile.cs#L83)). |
+| Postion | 24 | Position in 3D space (3 Floats). |
+| Size | 24 | Size in 3D space (3 Floats). |
+| Mirror | 1 (bit) | Specifies if the texture should be mirrored. |
+| U | 7 (bits) | U texture coordinate. |
+| Hide with armor | 1 (bit) | Specifies if the box should hide when wearing armor. |
+| V | 7 (bits) | V texture coordinate. |
+| Inflate | 4 | Defines box scale without changing the UV. |
+
+
+### Offset data
+| Name | Size<br>(in bytes) | Description |
+|:-:|:--:|:-:|
+| Type | 1 | Type of offset ([see PSMOffsetType](../PCK-Studio/Internal/FileFormats/PSMFile.cs#L60)). |
+| Value | 4 | The Vertical Offset. |
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