Technical Fashion Flat Sketch
Stable DiffusionAn SDXL 1.0 prompt for a technical fashion flat sketch — a structured blazer and cropped trousers in clean black ink with red dashed seam lines on off-white paper, drawn to industry proportions with no model or text.
Last tested: August 2026 with Stable Diffusion SDXL 1.0
Part of the Stable Diffusion prompt library · see more flat design prompts .
Prompt
A technical fashion flat sketch of a structured blazer drawn in a straight-on front view, clean black ink outline on warm off-white paper, visible seam lines and dart markings in fine dashed red, a centre front opening with three button placements marked as small circles, notches at the waist and armhole, a small ruler scale at the bottom edge, the blazer drawn to industry proportions with squared shoulders and a nipped waist, a cropped trouser flat sketch beside it in the same ink line weight, both garments flat and geometric with no shading, no model, no mannequin, no text, no labels, no logo, professional garment technical drawing style
Negative prompt
text, watermark, logo, labels, 3D shading, gradient, photorealistic, mannequin, model, color fill, watercolor, brush texture, deformed proportions, crooked lines
Settings
- Model
- Stable Diffusion SDXL 1.0
- Aspect ratio
- 3:4
- Steps
- 30
- CFG scale
- 6
- Sampler
- DPM++ 2M Karras
How to use this prompt
"Flat and geometric with no shading" is the phrase that keeps SDXL in the technical-drawing register rather than drifting into illustration — any shading turns a flat sketch into a fashion illustration, which is a different deliverable. The red dashed seam lines and dart markings are the industry convention, and naming the colour explicitly prevents SDXL from using a single colour for both outline and seams. "Notches at the waist and armhole" are the small marks that make the sketch read as professional pattern work rather than a doodle. The button circles and ruler scale are the two details that say "technical document" to a garment technician reviewing the flat.
Variations to try
- Swap the blazer for a wrap dress with tie-belt markings for a womenswear flat
- Add a back view beside the front view with a centre-back seam line and zipper marking
Explore collections
What to do next
Adapt it →
Open this prompt in the Stable Diffusion builder, pre-filled, and change one layer at a time.
Explore more →
Browse the full Stable Diffusion prompt library — every entry tested with its settings.
For developers — copy this prompt as JSON
{
"title": "Technical Fashion Flat Sketch",
"prompt": "A technical fashion flat sketch of a structured blazer drawn in a straight-on front view, clean black ink outline on warm off-white paper, visible seam lines and dart markings in fine dashed red, a centre front opening with three button placements marked as small circles, notches at the waist and armhole, a small ruler scale at the bottom edge, the blazer drawn to industry proportions with squared shoulders and a nipped waist, a cropped trouser flat sketch beside it in the same ink line weight, both garments flat and geometric with no shading, no model, no mannequin, no text, no labels, no logo, professional garment technical drawing style",
"negative_prompt": "text, watermark, logo, labels, 3D shading, gradient, photorealistic, mannequin, model, color fill, watercolor, brush texture, deformed proportions, crooked lines",
"model": "Stable Diffusion",
"model_version": "SDXL 1.0",
"settings": {
"aspect_ratio": "3:4",
"steps": 30,
"cfg": 6,
"sampler": "DPM++ 2M Karras"
},
"style_tags": [
"flat-design",
"minimalist"
],
"use_case_tags": [
"fashion",
"illustration"
],
"source_url": "https://promptkoi.com/prompts/stable-diffusion/technical-fashion-flat-sketch/"
}The whole library is available as an open JSON dataset · developer docs.
