Demonia Swing-150 5 1/2 Inch Wedge Platform Lace-Up Knee High Boots with Chain Detail
Size Chart
Demonia size chart
| US Women | US Men | UK | EU | Insole (in) | Insole (cm) |
|---|---|---|---|---|---|
| 5 | 3 | 2 | 35 | – | – |
| 6 | 4 | 3 | 36 | 9.13" | 23.2 |
| 7 | 5 | 4 | 37 | 9.45" | 24.0 |
| 8 | 6 | 5 | 38 | 9.76" | 24.8 |
| 9 | 7 | 6 | 39 | 10.08" | 25.6 |
| 10 | 8 | 7 | 40 | 10.39" | 26.4 |
| 11 | 9 | 8 | 41 | 10.71" | 27.2 |
| 12 | 10 | 9 | 42 | 11.02" | 28.0 |
| 13 | 11 | 10 | 43 | 11.34" | 28.8 |
| 14 | 12 | 11 | 44 | 11.65" | 29.6 |
| 15 | 13 | 12 | 45 | – | – |
| 16 | 14 | 13 | 46 | – | – |
- Demonia styles are US women's sizes unless the product says men's or unisex. Whole sizes only.
- Between sizes? Size up – especially in closed-toe platforms and boots.
- Insole length is the inside length of the shoe; it runs a little longer than your foot.
Charts are the brand's published sizing. Fit can vary by style. Need more help? See our size guide.
California Prop 65 Warning
⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Couldn't load pickup availability

Shipping & Returns
Free US shipping on orders $49+. We ship within the United States only.
Need a different size? See our shipping and return policy for details.
- 5 1/2" (140mm) Wedge Platform Lace-Up Front Stretch Knee High Boot
- Removeable Metal Chain Detail
- Inside Metal Zip Closure
- Approximate calf circumference: 12.2"
- Approximate shaft height: 10.8"
The Swing-150 boots are a daring addition to any wardrobe, merging comfort with cutting-edge style. With a statuesque 5 1/2" wedge platform, these boots are crafted from premium black stretch vegan leather that hugs your legs for a sleek silhouette. The lace-up front paired with removable metal chain detail allows you to personalize your look to match your mood or outfit. An inside metal zip closure provides easy access, making these knee-high boots a stylish yet practical choice for those who love to stand out.