CNF Rear Geometry
Vicente Cohort Playbook
Engineering notes and cut-specific guidance for the Vicente cohort — from geometry targets to manufacturing feedback loops.
Geometry Targets
| Metric | Target | Tolerance |
|---|---|---|
| Projection | 27.5 mm | ±4 mm |
| Curvature | 0.91 | ±0.12 |
| Contour stability | ≥ 0.90 | — |
Pattern Parameters
| Parameter | Base | Range | Notes |
|---|---|---|---|
| Seat ease | 14 mm | 12–16 mm | Controls upper-seat tension |
| Thigh ease | 10 mm | 8–12 mm | Controls side-seam tension |
| Yoke angle | 18° | 16–20° | Controls rear curvature support |
| Rise curve | mid | ±0.03 curvature | Controls projection support |
Levi's Cut Engineering Notes
| Cut | Notes |
|---|---|
| 501 | Excellent projection match. Excellent curvature match. Minimal tension. Ideal baseline. |
| 513 | Best comfort–structure balance. Primary recommendation. |
| 514 | Most stable across poses. Best for cohort stability. |
| 511 | Upper-seat tension risk. Needs +1 size or pattern tuning. |
| 541 | Side-seam tension risk. Needs thigh ease tuning. |
The Future
- Real geometry replaces mannequins as the standard body for rear-fit engineering.
- Dynamic fit with movement-aware tension becomes the norm.
- Cohort-driven fit replaces generic waist sizing.
- Pattern engineering becomes fully quantitative.
- CNF → Levi's → CNF feedback loops reduce returns and improve comfort.