Isabelle | Women's Black Knee-High Boots
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Size Finder · Women
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Free shipping · Order today, arrives in 5–8 business days
- 90-day returnsPrintable return label by email
- Ships in 2–4 business daysTracked delivery in 3–4 days
- Real people, real answersEmail replies within a few hours
- Designed in the USAConsidered pieces, made to last
Women's black knee-high boots with fold-over cuff
The Isabelle knee-high boot keeps things sleek and straightforward — a clean black silhouette with a relaxed fold-over cuff and a silver chain detail that adds just enough edge. Wear them with a mini skirt and a black top for an all-black look, or let them anchor a casual daytime outfit with jeans or a midi dress. They're the kind of boots that get regular rotation from fall through winter without ever feeling overdone.
Why the Isabelle knee-high boot works for every wardrobe:
- Knee-High Silhouette: Reaches the knee for a leg-lengthening, polished look
- Fold-Over Cuff Design: Adjustable cuff lets you wear slouched or upright
- Flat Heel Boot: All-day wearability without sacrificing style
- Silver Chain Detail: Subtle hardware accent adds edge to any outfit
Make the Isabelle your go-to boot from the first cool day of fall straight through winter.
| FOOT LENGTH (CM) | US (WOMEN) | EU LABEL SIZE |
|---|---|---|
| 22 | US 5 | EU 34 |
| 22.5 | US 5.5 | EU 35 |
| 23 | US 6 | EU 36 |
| 23.5 | US 6.5 | EU 37 |
| 24 | US 7 | EU 38 |
| 24.5 | US 7.5 | EU 38 |
| 25 | US 8 | EU 39 |
| 25.5 | US 8.5 | EU 40 |
| 26 | US 9 | EU 40 |
| 26.5 | US 9.5 | EU 41 |
| 27 | US 10 | EU 42 |
| 27.5 | US 10.5 | EU 42 |
| 28 | US 11 | EU 43 |
| 28.5 | US 11.5 | EU 44 |
| 29 | US 12 | EU 45 |
As shoe sizes can vary depending on the model, we strongly recommend using our size chart and measuring the length of your foot sole to find the best fit.


Size Guide
Find your fit.
Our pieces follow standard US sizing. If you're between sizes, choose the larger size for outerwear and knitwear and your usual size for dresses. The Size Finder on every product page gives you a personal recommendation in seconds.
Women's clothing
| Size | US | Bust (in) | Waist (in) | Hips (in) |
|---|---|---|---|---|
| XS | 0–2 | 31–32 | 24–25 | 34–35 |
| S | 4–6 | 33–34 | 26–27 | 36–37 |
| M | 8–10 | 35–36 | 28–29 | 38–39 |
| L | 12–14 | 37.5–39 | 30.5–32 | 40.5–42 |
| XL | 16 | 40.5–42 | 33.5–35 | 43.5–45 |
| XXL | 18 | 43.5–45 | 36.5–38 | 46.5–48 |
Men's clothing
| Size | Chest (in) | Waist (in) | Neck (in) |
|---|---|---|---|
| S | 35–37 | 29–31 | 14–14.5 |
| M | 38–40 | 32–34 | 15–15.5 |
| L | 41–43 | 35–37 | 16–16.5 |
| XL | 44–46 | 38–40 | 17–17.5 |
| XXL | 47–49 | 41–43 | 18–18.5 |
Shoes
| Foot length (in) | Women US | Men US | EU |
|---|---|---|---|
| 9.0 | 6 | – | 36–37 |
| 9.4 | 7 | – | 37–38 |
| 9.7 | 8 | 6.5 | 38–39 |
| 10.0 | 9 | 7.5 | 40 |
| 10.3 | 10 | 8.5 | 41 |
| 10.6 | 11 | 9.5 | 42–43 |
| 11.0 | – | 10.5 | 44 |
| 11.3 | – | 11.5 | 45 |
| 11.7 | – | 12.5 | 46 |
Still unsure? Email info@fifthavenuestyle.com for personal sizing help.
Every piece is made from carefully selected materials. Please follow the care label inside the garment. As a rule of thumb: wash knitwear cold and dry it flat, and have tailored outerwear professionally dry cleaned to keep its shape for years.
Free US shipping on every order. Orders are processed within 2–4 business days, then delivered within 3–4 business days. You'll receive a tracking number by email as soon as your order ships.
90-day returns. Return unworn items in their original condition within 90 days of delivery. Email us and we'll send you a printable return label; the label cost is deducted from your refund, except for damaged, faulty or incorrect items. Full return policy