Gillian | Stylish Sleeveless Zip Neck Jumpsuit
Designed in Littleton, Colorado · Ships from North America
- In stock — ships within 1–3 business days
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Effortless Modern Style in One Easy Piece
The Gillian Zip Neck Jumpsuit is designed for a clean, confident look that feels as comfortable as it is polished. With its relaxed silhouette and modern detailing, it offers a versatile outfit you can wear from day to night with ease.
Why You’ll Love It
✓ Relaxed Flattering Fit — Drapes smoothly for an effortless, streamlined silhouette.
✓ Modern Zip Neckline — Adjustable detail that adds structure and a contemporary edge.
✓ All-Day Comfort — Designed for easy movement and comfortable wear throughout the day.
✓ Practical Side Pockets — Subtle and functional for everyday essentials.
✓ Versatile Styling — Dress it down with Sneakers or elevate it with heels.
The Gillian Stylish Sleeveless Zip Neck Jumpsuit is a go-to wardrobe piece for women who want simple, modern style without sacrificing comfort or practicality.
We choose natural, hard-wearing fibers — wool, cashmere, cotton and suede — so each piece looks better with every season. The exact composition is listed in the description above.
Knitwear: hand wash cold or dry clean, lay flat to dry, store folded.
Coats & jackets: dry clean only; brush wool gently after wear and hang on a wide hanger.
Suede & leather: protect with a water-repellent spray and brush with a suede brush.
Free US shipping on every order.
Processing: 1–3 business days · Delivery: 3–5 business days after dispatch.
Ships from our North American warehouse with tracking.
90-day returns. Email us and we'll send you a printable return label. Return shipping is paid by the customer — except for wrong, damaged or defective items. Full return policy
Our pieces are cut for a relaxed, layered fit. If you're between sizes, size down for a closer fit or up for room over knitwear. Not sure? Use Find my size on any product page — you'll have your size in a few seconds.
Women
| 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 | 38–40 | 31–33 | 41–43 |
| XL | 16 | 41–43 | 34–36 | 44–46 |
| XXL | 18 | 44–46 | 37–39 | 47–49 |
Men
| Size | Chest (in) | Waist (in) | Neck (in) | Sleeve (in) |
|---|---|---|---|---|
| S | 35–37 | 29–31 | 14–14.5 | 32–33 |
| M | 38–40 | 32–34 | 15–15.5 | 33–34 |
| L | 41–43 | 35–37 | 16–16.5 | 34–35 |
| XL | 44–46 | 38–40 | 17–17.5 | 35–36 |
| XXL | 47–49 | 41–43 | 18–18.5 | 36–37 |
Shoes
| US Women | US Men | EU | Foot length (in) |
|---|---|---|---|
| 6 | — | 36 | 9.1 |
| 7 | — | 37–38 | 9.4 |
| 8 | 6.5 | 38–39 | 9.8 |
| 9 | 7.5 | 40 | 10.0 |
| 10 | 8.5 | 41–42 | 10.4 |
| — | 9.5 | 42–43 | 10.6 |
| — | 10.5 | 44 | 11.0 |
| — | 11.5 | 45 | 11.3 |
| — | 12.5 | 46 | 11.6 |
How to measure
Bust / chest
Measure around the fullest part, keeping the tape level under your arms.
Waist
Measure around your natural waistline, the narrowest part of your torso.
Hips
Stand with feet together and measure around the fullest part of your hips.
Foot length
Stand on a sheet of paper, mark heel and longest toe, and measure the distance.
Questions about fit or fabric? Email us: contact@highline-hart.com







