Unna | Sequin Mini Cocktail Dress with Puff Sleeves for Women
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This sequin mini cocktail dress features a shimmering body with a subtle sparkle pattern throughout, paired with sheer puff sleeves that add dimension and elegance. The dress has a classic crew neckline and a fitted, straight-cut silhouette that hits at the knee, making it easy to move in and comfortable to wear all night. The contrast between the sequined main body and the delicate mesh sleeves creates visual interest while keeping the overall look polished and put-together. This is a go-to option when you want to stand out at evening events without looking overdone.
Key Features
- Sequin Body: The shimmering sequined fabric catches light beautifully, so you'll look radiant under any lighting at a party or event.
- Puff Sleeves: The billowing mesh sleeves add volume and texture, balancing the fitted dress and giving you a more interesting silhouette than a basic sleeveless option.
- Mini Length: The knee-length cut shows off your legs while staying appropriate for cocktail occasions, and pairs well with heels or dressy flats.
- Night Out Ready: Ideal for cocktail parties, holiday gatherings, date nights, or any evening event where you want to look put-together and celebratory.
Use the fit finder next to the size selector for a recommendation in a few seconds, or see the full measurement charts below.
Every product page has a fit finder next to the size selector — three questions, one recommendation, a few seconds. These charts are for anyone who would rather read the numbers.
How to measure
- Bust / chest. Around the fullest part, tape level, arms relaxed at your sides.
- Waist. Around the narrowest part of your torso, usually just above the navel.
- Hips. Around the fullest part, roughly 8 in below the waist.
- Inseam. From the crotch seam to the floor, in the shoes you'll wear the trousers with.
Measure over the underwear you'd normally wear, not over clothing. Keep the tape snug but not tight.
Women's clothing
| Size | US | Bust (in) | Waist (in) | Hips (in) |
|---|---|---|---|---|
| XXS | 0–2 | 31–32 | 24–25 | 34–35 |
| XS | 2–4 | 33–34 | 26–27 | 36–37 |
| S | 4–6 | 35–36 | 28–29 | 38–39 |
| M | 8–10 | 37–38½ | 30–31½ | 40–41½ |
| L | 12–14 | 39½–41 | 32½–34 | 42½–44 |
| XL | 16–18 | 42–44 | 35–37 | 45–47 |
| XXL | 20–22 | 45–47 | 38–40 | 48–50 |
Men's clothing
| Size | Chest (in) | Waist (in) | Neck (in) |
|---|---|---|---|
| XS | 33–35 | 27–29 | 14–14½ |
| S | 36–38 | 30–32 | 15–15½ |
| M | 39–41 | 33–35 | 15½–16 |
| L | 42–44 | 36–38 | 16½–17 |
| XL | 45–47 | 39–41 | 17½–18 |
| XXL | 48–50 | 42–44 | 18½–19 |
Women's shoes
| US | EU | UK | Foot length (in) |
|---|---|---|---|
| 5 | 35 | 2½ | 8⅝ |
| 6 | 36 | 3½ | 8⅞ |
| 7 | 37–38 | 4½ | 9¼ |
| 8 | 38–39 | 5½ | 9½ |
| 9 | 39–40 | 6½ | 9⅞ |
| 10 | 41 | 7½ | 10¼ |
| 11 | 42 | 8½ | 10½ |
Men's shoes
| US | EU | UK | Foot length (in) |
|---|---|---|---|
| 7 | 40 | 6 | 9⅝ |
| 8 | 41 | 7 | 9⅞ |
| 9 | 42 | 8 | 10¼ |
| 10 | 43 | 9 | 10⅝ |
| 11 | 44 | 10 | 10⅞ |
| 12 | 45 | 11 | 11¼ |
| 13 | 46 | 12 | 11½ |
How our pieces are cut
- Dresses are cut true to size. If you are between sizes, take the smaller one — most of our dresses have ease through the waist.
- Coats and jackets are cut with room for a knit underneath. Take your usual size; size up only if you layer heavily.
- Knitwear is relaxed by design. Between sizes, take the smaller one unless you want an oversized look.
- Trousers and jeans run true to size. Between sizes, take the larger one.
- Shoes run true to size. If you have a wide foot, take half a size up.
Still not sure?
Write to info@halstead.com with your usual size, your height and the piece you're looking at. We'll tell you what we would pick — usually within a few hours. We would far rather get it right the first time than process a return.
We work in natural fibres — wool, cashmere, cotton, linen and full-grain leather.
Knitwear: cold hand wash or a wool cycle at 30 °C, no softener, dried flat and stored folded.
Coats: dry clean once or twice a season, stored on a broad wooden hanger.
Leather: wipe with a damp cloth, condition twice a year, never dry near heat.
Full guidance is on our Materials & Care page.
Shipping is free on every order to all 50 states, with no minimum.
Processing: 2–4 business days, while your order is picked and checked by hand.
Transit: 3–4 business days.
Total: 6–9 business days, with tracking emailed the moment it leaves Chesapeake.
Returns: 90 days from delivery. We email you a printable label; return shipping is deducted from the refund unless the fault is ours, and your first exchange is always free.