Skip to content

Cart

Your cart is empty

Bestseller

One-Shoulder Jumpsuit in Lightweight Wide-Leg Silhouette | Koossa


Low stock!
Free delivery Free UK delivery — includes tracking
Money-back guarantee 30-day money-back guarantee
Colour:Black
Size:

Size Guide

Women's Clothing

SizeUKBust (cm)Waist (cm)Hips (cm)
XS6–880–8460–6486–90
S8–1084–8864–6890–94
M10–1288–9468–7494–100
L12–1494–10074–80100–106
XL14–16100–10680–86106–112
XXL18–20106–11486–94112–120
3XL20–22114–12294–102120–128

All measurements are body measurements. If between sizes, size up for a relaxed fit.

Dispatched Mon 29 Jun
🇬🇧 Free UK Delivery
2-Year Guarantee Quality assured
30-Day Returns Hassle-free

A Contemporary Silhouette for Confident Dressing

This one-shoulder jumpsuit brings architectural grace to your wardrobe with its asymmetric neckline and wide-leg trousers. Crafted from a lightweight, fluid fabric, it drapes beautifully whilst maintaining a tailored structure that flatters every figure. The elongating silhouette and sculptural cut make it a versatile choice for evening occasions or sophisticated daytime engagements. Whether you're attending a gallery opening or a celebratory dinner, this jumpsuit offers effortless elegance without fuss.

Why You'll Love It

  • Asymmetric one-shoulder design: Creates a striking, modern silhouette that turns heads with understated confidence.
  • Wide-leg trousers: Elongate the frame and provide graceful movement with every step.
  • High neckline detail: Balances the asymmetry with refined, polished appeal.
  • Tailored fit through the bodice: Offers a flattering shape that skims the body without clinging.
  • Lightweight, comfortable fabric: Ensures all-day ease whilst maintaining a crisp, sophisticated drape.
  • Minimalist structure: Lets the cut do the talking — no unnecessary embellishment required.

Perfect For

Style this jumpsuit with strappy heeled sandals and delicate drop earrings for evening glamour, or add a tailored blazer and pointed-toe flats for a polished daytime ensemble. The versatile colour palette allows you to accessorise with bold metallics or keep things quietly chic with tonal neutrals. It's the sort of piece that travels beautifully, packs without creasing, and transitions seamlessly from cocktail hour to late-night celebration. A wardrobe investment that rewards you with countless styling possibilities.

Free UK delivery on every order — no minimum spend required.

Your order is carefully packaged and sent with full tracking, so you always know exactly when to expect your delivery.

Order today and we'll dispatch it the next working day.

Not quite right? You have 30 days to return your purchase — no questions asked.

We also offer a 2-year guarantee against manufacturing faults, because we stand behind everything we sell.

1
Contact us Email us with your order number and reason for return.
2
Send it back Pack the item securely and post it to our returns address.
3
Receive your refund Once received, we'll process your return and refund within 5 working days.
Fit Guide ✓  True to Size
Runs small
Runs large
One-Shoulder Jumpsuit in Lightweight Wide-Leg Silhouette | Koossa
One-Shoulder Jumpsuit in Lightweight Wide-Leg Silhouette | Koossa Sale price£54.95
Complete the look

You May Also Like

Frequently asked questions

How do I know this will fit me?
Each product page includes a detailed size guide. If you're between sizes, we recommend sizing up for a more comfortable, relaxed fit. Our customer care team is also happy to advise — simply get in touch before you order.
What is your returns policy?
We offer a straightforward 30-day returns policy. If you're not completely satisfied, contact our team with your order number and we'll guide you through the process. Refunds are issued within 5 working days of receiving your return.
How do you ensure the quality of your clothing?
Every garment in the Koossa collection is selected for its fabric quality, construction, and longevity. We work with carefully chosen suppliers and assess each piece for fit, finish, and durability before it reaches you.
Are the colours accurate in the product photos?
We photograph each item in natural light to represent colour, texture, and drape as faithfully as possible. Please note that screen settings can vary slightly, but we do our best to ensure what you see is what you receive.
When will my order arrive?
Orders placed today are dispatched the next working day. All deliveries include full tracking so you can follow your parcel every step of the way. Free UK delivery is included on every order, with no minimum spend.
Why shop with Koossa?
Koossa was created for those who dress with intention. We curate timeless, well-made clothing and accessories for the over-50s — people who value quality over trends, and style over noise. Every order is backed by free delivery, easy returns, and genuine customer care.
The Koossa team in our boutique The Koossa team
Our Promise

We stand behind every piece we sell

We started Koossa because we believed fashion could be both timeless and trustworthy. Every garment is personally selected for its quality, cut, and craftsmanship. If it wouldn't meet our own standards, it doesn't reach yours. That's not a policy — it's simply how we work.

30day
No-questions returns window
0.5%
Of customers ever use it
5day
Refund processed within
30-Day Money-Back Guarantee Not satisfied? We'll refund you in full — no forms, no fuss. Simply contact us within 30 days.
Free UK Delivery On every order
Easy Returns 30-day hassle-free returns
Secure Payment SSL encrypted checkout