The bra goes back in the drawer.
The support is sewn in.On at 8, forgotten all day.
The Warm Vest · built-in bra vest
4.8/5 · 1,244 reviews
Free delivery, tracked
Moulded cups, fixed in · smooth under a blouse
Wide, flat straps · light on the shoulder
Warm, seamless knit · cosy under the cardigan
Made for you if…
✓ you're done with wires and hooks
✓ you want support without a band digging in
✓ you like a smooth line under a blouse
✓ you want one easy layer, every day
4 colours
How many? One on, one in the wash. Mix the colours.
Size
Size
Order today · estimated delivery Tue 10 Nov
A real person answers emails within a working day
Margaret, Anne, Siobhán and 1,241 others rate it 4.8/5
Ships in 24hFree, tracked
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Why a bra digs in by 3pm.
Two thin straps and a band carry the weight all day. Each usual option has its catch.
A classic bra
A hook to do up behind your back, and often a wire.
No hook, no wire: the cups sit in the vest, the straps lie flat.
A vest over a bra
Two layers under the jumper, and the bra still digs in beneath.
One layer: the bra is part of the vest.
A vest with loose pads
The pads are separate, so they can move or fold in the wash.
The cups are moulded and fixed in: nothing to put back.
Cups moulded in
Shaped in a mould, then sewn into the front: they sit in the same place every time you put it on.
Wide, flat straps
Wide at the shoulder and flat against it, so the weight is spread rather than held by a thin strap.
From 8am to bedtime.
- 8amVest on, jumper on. The bra stays in the drawer.
- 3pmErrands, a walk, a cup of tea. You haven't touched a strap since 8.
- 6pmThe car ride home, when the bra used to come off. The vest stays on.
- 10pmTaken off at bedtime. The first thought of it all day.
Real sizes, M to 3XL.
One measurement: around the fullest part of the bust. Pick the row that matches; between two sizes, take the bigger one.
Dress size: M 8 to 10 · L 12 · XL 14 · 2XL 16 · 3XL 18 to 20. Bra sizes in the full size guide. Wrong size? Swapped within 30 days.
What customers say
4.8/5 · 1,244 reviews
Margaret O. · 2 weeks ago
✓ Verified buyer
“I forget I have it on”
I'm 77 and I can't stand bras. I took a size up for my broad ribcage. I wear it all day, my blouses don't stick to it, and I'm properly supported.
Bought: 2XL · Coffee
Anne K. · 6 days ago
✓ Verified buyer
“It still didn't hurt at dinner”
I usually pull my bra off in the car on the way home. We went out for dinner and it still didn't hurt. No line across my back, either.
Bought: XL · Coffee
Siobhán R. · a week ago
✓ Verified buyer
“Nothing squeezes”
I'm 5'8" and slim, so I worried about the fit. I sized up and it's lovely: nothing squeezes, I can breathe, and it stays put all day.
Bought: L · Red
Questions
Which size should I order?
Measure around the fullest part of the bust and use the size guide: each size is in centimetres and inches, with the matching dress size. Between two sizes, take the bigger one.
What if the size is wrong?
Write to us within 30 days with the size you need, and post back the vest that doesn't fit, one or all of them. As soon as it is posted, we send the right size, delivered free. Return postage is at your cost. Or withdraw within 14 days of delivery for a refund, using the ‘Withdraw from contract here’ button below.
Will it hold a fuller bust?
It gives everyday support, with moulded cups and wide straps, not the firm hold of a sports bra. It goes up to a 112 cm (44 in) bust. If the size isn't right, it is swapped within 30 days.
Is it easy to put on?
It pulls on over the head like any vest, and the knit stretches as it goes on. Between two sizes, take the bigger one for an easier fit.
Are the cups fixed or removable?
Fixed: sewn into the vest, nothing to take out or put back. To keep their shape, wash it cool in a laundry bag and dry it flat, not in the tumble dryer.
What is it made of?
A soft, warm, seamless stretch knit in polyamide and elastane, with moulded cups fixed inside. The exact percentages are printed on the care label.
How warm is it?
It is a warm knit, made for autumn and winter. Indoors it is worn like any vest; outdoors, under a jumper or a coat. On a hot summer day, it is the wrong vest.
When will it arrive?
It ships within 24 hours, with a tracking number sent by email. Order today and it is estimated to arrive by Tue 10 Nov. Delivery is free. Delivery times to Ireland are on our Shipping and delivery page.
Above 3XL?
Not yet: the Warm Vest stops at 3XL, a 112 cm (44 in) bust. Write to support@sewnday.com to be told if bigger sizes come.
The vest
vs. a classic bra
Sewnday
Nothing to fasten.
VAT not applicable, art. 293 B CGI · support@sewnday.com · Manufacturer: Shenzhen Baokaxiu E-commerce Co., Ltd, 25A, Building 6, No. 6, No. 10, Liuhe Community and Political Road, Pingshan Street, Pingshan District, Shenzhen, Guangdong, China · Responsible person in the EU (Regulation (EU) 2023/988, GPSR): VAT Speed SL, Calle Antonio Salvador 99-1, 28026 Madrid, Spain · Full details in the legal notice
© 2026 Sewnday · Prices in euro, taxes included · Delivered in Ireland
