Blythewyn | Classic Black Midi Dress
Sarah London
Size Guide
If you are between sizes, we recommend choosing the larger size for a more comfortable and elegant fit.
| Size | UK Size | Bust CM / IN |
Waist CM / IN |
Hips CM / IN |
Dress Length CM / IN |
|---|---|---|---|---|---|
| XS | 6 | 80 / 31.5 | 62 / 24.4 | 86 / 33.9 | 135 / 53.1 |
| S | 8 | 84 / 33.1 | 66 / 26.0 | 90 / 35.4 | 136 / 53.5 |
| M | 10 | 88 / 34.6 | 70 / 27.6 | 94 / 37.0 | 137 / 53.9 |
| L | 12 | 94 / 37.0 | 76 / 29.9 | 100 / 39.4 | 138 / 54.3 |
| XL | 14 | 100 / 39.4 | 82 / 32.3 | 106 / 41.7 | 139 / 54.7 |
| 2XL | 16 | 106 / 41.7 | 88 / 34.6 | 112 / 44.1 | 140 / 55.1 |
| 3XL | 18 | 112 / 44.1 | 94 / 37.0 | 118 / 46.5 | 141 / 55.5 |
Product Measurements
These are the garment measurements for this style.
| Size | Length | Bust | Shoulder | Sleeve | Waist |
|---|---|---|---|---|---|
| S | 146 | 84 | 36 | 24 | 68 |
| M | 147 | 88 | 37 | 25 | 72 |
| L | 148 | 93 | 38 | 26 | 77 |
| XL | 149 | 98 | 39 | 27 | 82 |
| 2XL | 150 | 104 | 40 | 28 | 88 |
| 3XL | 151 | 108 | 41 | 29 | 92 |
Fast & Free Shipping with Royal Mail
Effortless Sophistication And Timeless Confidence Dress
A modern interpretation of the little black dress, this elegant midi piece embodies refined grace and power. Featuring a soft, structured fabric with a tailored waist belt, it flatters the figure while maintaining a sleek and minimalist silhouette. The subtle sleeve slits and asymmetric hem add a touch of contemporary charm, making it the perfect choice for evening occasions or professional settings that call for effortless elegance.
Why Hundreds Of Women Love This Dress
- Flattering hourglass fit: The belted waist accentuates natural curves, offering a confident and feminine silhouette that feels both polished and comfortable.
- Sophisticated design details: The high neckline, subtle sleeve slits, and overlapping hem combine timeless elegance with a modern edge.
- Smooth, comfortable fabric: Crafted from a soft yet structured material that moves gracefully with you, keeping you poised and comfortable all day — or all evening — long.
Act fast – your size and this price won’t come back soon.
At Sarah London, we believe true elegance begins with the materials we choose.
Each piece is crafted from carefully selected fabrics designed to feel soft, drape beautifully, and complement your everyday wardrobe with ease.
We focus on breathable, comfortable textiles that offer effortless movement and a refined look throughout the day. From soft blends to smooth finishes and premium knits, every material is chosen for its quality, durability, and timeless appeal.
Our approach is simple: thoughtfully designed pieces, elevated through quality materials that feel as good as they look — season after season.
Enjoy free tracked delivery across the United Kingdom.
Your order is processed quickly to ensure a smooth and reliable delivery experience.
If your purchase isn’t quite right, you can return it within 30 days — simple and hassle-free.
