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Women's Black Heart Print Sweatshirt Dress — Longline Oversized Jumper Dress
Colour : Black
An oversized heart print sweatshirt dress for women — a longline jumper dress with three metallic hearts down the front. Comfortable enough to live in, finished enough to leave the house in.
Three hearts sit down the centre front in a soft metallic silver and gold that catches the light without shouting. A ribbed round neckline, ribbed cuffs and a deep ribbed hem hold the shape, the sleeves fall long and relaxed, and the gently rounded cut skims the body before drawing in at the hem. The longline length falls to mid-thigh, so it works as a dress over leggings or as a long jumper with jeans.
Made for the days you want to be comfortable and still look like you tried — the school run, coffee with friends, working from home, weekend afternoons and cold evenings in. Wear it with leggings and tall boots, or with jeans and trainers.
Sizes S to 3XL. This style is cut generously and falls to mid-thigh.
Our model is 175 cm tall and wears a size XL.
100% HAPPINESS GUARANTEE
We put a lot of care into every piece we choose — and we want you to feel completely confident when you order from us.
If something isn't quite right, simply return it within 60 days for a full refund. No fuss, no difficult questions.
That's our promise to you.
TRUSTED BY THOUSANDS ACROSS THE UK
3,728 reviews
Had a small issue with my address and the sisters sorted it instantly. Proper, friendly service. Highly recommend!
3 hours ago
I wasn't sure which size to pick for my shape, so I messaged the team. They were so helpful and recommended the perfect fit. It’s rare to get such personal service online these days!
4 Days ago
You can really feel the quality here. It’s not that thin, cheap material you often see. It hangs beautifully and looks much more expensive than it actually was. I'm impressed!
1 day ago
Lovely shopping experience. I received regular updates from the moment I ordered until it hit my doorstep. The tracking was spot on and delivery was free. No guesswork involved!
3 days ago
Had a quick question about my order and the sisters replied personally. You can tell they take pride in their London boutique. It feels much more special than buying from a big chain.
5 days ago
I was worried about ordering from a new shop, but the quality is top-notch. It washes well and keeps its shape.
1 week ago
Combine and get up to extra 20% off
Frequently Asked Questions
Do you offer free shipping?
Yes — every order comes with free, fully tracked shipping. You'll receive a confirmation email with your tracking details as soon as your order is on its way. No hidden costs, ever.
How long does delivery take?
We process and dispatch all orders within 1–3 business days. Once shipped, you'll receive regular email updates so you always know where your parcel is, you can also use Track Your Order to see where your Parcel is. Delivery times may vary slightly depending on your location.
How can an I return the item(s) if I don’t like them?
Absolutely. We offer a full 60-day return guarantee — no fuss, no difficult questions. Simply email us at contact@themercersisterslondon.uk within 60 days of receiving your order and we'll arrange a full refund.
What payment methods do you accept?
We accept all major credit and debit cards, and other trusted payment options at checkout. Every transaction is fully secured.
How do I know which size to choose?
Each product page includes a detailed size guide. If you're ever unsure, feel free to email us — we're happy to help you find the right fit.
Are your pieces good quality?
Quality is everything to us. Every piece in our collection is carefully selected — we only choose clothing we'd be proud to give to our own mum. If something ever falls short of that standard, we want to know.
Can I contact you directly?
Always. We're two real sisters, not a call centre. Email us at contact@themercersisterslondon.uk and we'll get back to you personally.
Free Shipping
Every order is shipped free, straight to your door. We process and dispatch within 1–3 business days — so you won't be waiting long.
60-Day Return Guarantee
Not quite right? No problem. Simply email us within 60 days of receiving your order and we'll sort it — no fuss, no hassle. contact@themercersisterslondon.uk
100% Secure Payments
Shop with confidence. Every payment is fully secured, with a variety of trusted payment options at checkout.
Women's Black Heart Print Sweatshirt Dress — Longline Oversized Jumper Dress
£44.95