---
license: apache-2.0
task_categories:
  - image-to-image
tags:
  - flux
  - flux-klein
  - lora
  - virtual-try-on
  - clothing
  - fashion
  - image-editing
library_name: diffusers
pipeline_tag: image-to-image
---

# Flux Klein 9b Virtual Try-On LoRA

Virtual clothing try-on LoRA for [Flux Klein 9b Edit](https://fal.ai/models/fal-ai/flux-2/klein/9b/base/edit/lora). Given a person image and clothing reference images, generates a realistic result of the person wearing the specified outfit.

**3 input images** (person, top, bottom) **→ 1 output** with the person wearing the clothes.

Built with [fal.ai](https://fal.ai)

**Try it now:**
- [Playground (direct)](https://fal.ai/models/fal-ai/flux-2/klein/9b/base/edit/lora?share=6010a961-502a-437a-974f-88c48730bf5d) — upload your images and run the model
- [Workflow with LLM](https://fal.ai/workflows/lovis/workflow-flux-klein-9b-virtual-tryon?view=playground) — auto-generates the prompt for you

## Results

<p align="center">
  <img src="showcase_demo.gif" alt="Virtual Try-On Showcase" width="480"/>
</p>

## Highlights

| Feature | Details |
|---------|---------|
| Base Model | Flux Klein 9b Edit |
| Input | 3 images: person + top garment + bottom garment |
| Output | Person wearing the specified outfit |
| Resolution | Up to 1024px |
| Clothing Types | T-shirts, hoodies, jackets, jeans, skirts, pants, shorts |
| Works With | Men and women, various body types and poses |

## Examples

### Woman — Graphic Tee + Distressed Jeans

<p align="center">
  <img src="outfit_01_single.gif" alt="Try-on example - woman graphic tee" width="360"/>
</p>

### Woman — Varsity Jacket + Cargo Shorts

<p align="center">
  <img src="outfit_13_single.gif" alt="Try-on example - woman varsity" width="360"/>
</p>

### Man — NASA Tee + Japanese Joggers

<p align="center">
  <img src="outfit_22_single.gif" alt="Try-on example - man streetwear" width="360"/>
</p>

### Man — Flight Bomber Jacket + Patchwork Jeans

<p align="center">
  <img src="outfit_37_single.gif" alt="Try-on example - man bomber jacket" width="360"/>
</p>

### Man — Polaroid Camera Tee + Striped Trousers

<p align="center">
  <img src="outfit_32_single.gif" alt="Try-on example - man casual smart" width="360"/>
</p>

> Example images shown on this page were generated using Nano Banana Pro and are not part of the training data.

## Prompt Format

```
TRYON [person description]. Replace the outfit with [top description] and [bottom description] as shown in the reference images. The final image is a full body shot.
```

### Image Input Order

The model expects **3 reference images** in this specific order:

| Position | Image | Description |
|----------|-------|-------------|
| 1st | Person / Mannequin | The person to dress |
| 2nd | Top garment | T-shirt, hoodie, jacket, etc. |
| 3rd | Bottom garment | Jeans, pants, skirt, shorts, etc. |

### Prompt Examples

```
TRYON young woman with long dark wavy hair, standing casually. Replace the outfit
with black oversized t-shirt with Japanese kanji and neon pink Tokyo skyline graphic
and heavily distressed ripped light blue denim jeans as shown in the reference images.
The final image is a full body shot.
```

```
TRYON young man with medium blonde wavy hair, standing casually. Replace the outfit
with black oversized t-shirt with holographic silver NASA space logo and black jogger
sweatpants with white Japanese characters as shown in the reference images.
The final image is a full body shot.
```

## Weights

Two versions of the LoRA weights are provided:

| File | Use with |
|------|----------|
| `flux-klein-tryon.safetensors` | fal.ai API / diffusers |
| `flux-klein-tryon-comfy.safetensors` | ComfyUI |

## Recommended Settings

| Parameter | Value |
|-----------|-------|
| `num_inference_steps` | 28 |
| `guidance_scale` | 2.5 |
| `lora_scale` | 1.0 |

## Usage

### Try It Online

The easiest way to try this model:

- **[Playground (direct)](https://fal.ai/models/fal-ai/flux-2/klein/9b/base/edit/lora?share=6010a961-502a-437a-974f-88c48730bf5d)** — upload 3 images and write the prompt yourself
- **[Workflow with LLM](https://fal.ai/workflows/lovis/workflow-flux-klein-9b-virtual-tryon?view=playground)** — upload 3 images and the LLM auto-generates the prompt

### Python (fal-client)

```python
import fal_client

result = fal_client.submit(
    "fal-ai/flux-2/klein/9b/base/edit/lora",
    arguments={
        "prompt": "TRYON young woman with long dark hair, standing casually. Replace the outfit with red hoodie and blue jeans as shown in the reference images. The final image is a full body shot.",
        "image_urls": [
            "https://your-person-image.png",    # 1st: person
            "https://your-top-image.png",        # 2nd: top garment
            "https://your-bottom-image.png",     # 3rd: bottom garment
        ],
        "loras": [{
            "path": "YOUR_LORA_WEIGHTS_URL",
            "scale": 1.0,
        }],
        "num_inference_steps": 28,
        "guidance_scale": 2.5,
    }
).get()

print(result["images"][0]["url"])
```

## Tips for Best Results

- **Describe the person** accurately in the prompt (hair, pose, body type)
- **Describe the clothing** in detail (color, pattern, style, material)
- **Full body shots** work best — mention "full body shot" in the prompt
- **Clean backgrounds** on input images improve results
- **Consistent lighting** across the 3 input images helps
- The trigger word `TRYON` must be at the start of the prompt
- Keep `lora_scale` at 1.0 for best results
- Works with both photographic and AI-generated input images

## Training

- **Base Model**: Flux Klein 9b Edit
- **Steps**: 2000
- **Learning Rate**: 5e-05
- **Platform**: fal.ai

## Full Showcase

<p align="center">
  <img src="full_showcase.gif" alt="Full showcase - 22 outfits" width="360"/>
</p>

22 outfits across men and women with diverse clothing styles.

## Author

Created by [Lovis Odin](https://x.com/OdinLovis) at [fal.ai](https://fal.ai)