Draft size-ladder match for clothes — then check line fit (slim jean ≠ straight jean).
Quick answer: Spanx L ≈ Skims L on the shared ladder (draft).
Static ladder table in HTML for crawlers; interactive tool above uses the same steps.
| Spanx Letter | Step | Skims Letter |
|---|---|---|
| XS | 0 | XS |
| S | 1 | S |
| M | 2 | M |
| L | 3 | L |
| XL | 4 | XL |
| XXL | 5 | XXL |
Spanx: OnCore High-Waisted Mid-Thigh
Skims: Fits Everybody T-Shirt
Shoe size comparisons are under /compare/ (not /compare/clothes/).