KNWLS Ace Long Sleeve Dress in Washed Blue, Blue Dresses
The KNWLS Ace Long Sleeve Dress in Washed Blue is an authentic Blue piece from the Fall Winter 2026 collection, made in 100% cotton and produced in Portugal. Find it beside the rest of the KNWLS edit and our designer dresses, then read the KNWLS dresses guide for fit and styling notes. It is available now at Coveti, a curated luxury-fashion retailer specialising in designer ready-to-wear and accessories with guaranteed authenticity and worldwide shipping. The piece carries the KNWLS signature: corsetry, anatomic sportswear seams and a close, body-first line. Browse more designer mini dresses.
The Ace dress in washed blue cotton jersey, with a wide neckline and dolman sleeves that flare at the cuff. The wash is done by hand, so every piece comes out slightly different in colour. It goes from a gallery opening to a late dinner without changing a thing.
Quick Facts
- Brand: KNWLS (London, United Kingdom, founded in 2017 by Charlotte Knowles and Alexandre Arsenault)
- Product: Ace Long Sleeve Dress in Washed Blue, Dresses
- Collection: Fall Winter 2026
- Colour: Blue
- Material: 100% cotton
- Made in: Portugal
- Fit and size: KNWLS cuts jersey and stretch pieces in letter sizes: XS is a UK 6, S a UK 8, M a UK 10 and L a UK 12. The fit is close to the body by design.
- Authenticity: 100% authentic, verified by Coveti
- Shipping: Worldwide by DHL Express and FedEx International Priority, insured and signature required
- Duties: Most regions ship Delivered Duty Unpaid, so local duties and taxes are payable on import. See the Coveti logistics and returns protocol.
KNWLS Ready-to-Wear
KNWLS ready-to-wear is built around corsetry and sportswear. Tops and leggings follow anatomic seam lines, corsets are boned and laced, and denim, leather and cupro are cut low on the hip and close to the body. The house designs in matching sets, so most tops have matching bottoms in the same fabric. Pieces are made in the United Kingdom, Portugal and Turkey.
How to Style the Ace Long Sleeve Dress in Washed Blue
- Day: Wear the Ace Long Sleeve Dress in Washed Blue with a flat leather shoe and very little else, the cut does the work.
- Evening: Add a pointed boot and sheer tights, the way the house styles its own runway.
- Layering: KNWLS designs in sets, so the matching piece in the same fabric is the easiest second step.
- Proportion: The rise is low and the line is close, so keep the top short and let the waist show.
Perfect Occasions for the Ace Long Sleeve Dress in Washed Blue
- Nights out, gigs and club dressing
- Gallery openings, dinners and fashion week
- Off-duty dressing with a sharper edge
- City wear, Coveti customers wear KNWLS in cities including London, Sydney, New York and Dubai
Explore the Dress Edit and the Coveti styling blog for more, including what to wear for every occasion in 2026, and The Dress Edit.
PRODUCT DETAILS
| Brand | KNWLS, designed in London, United Kingdom |
| Collection | Fall Winter 2026 |
| Colour | Blue |
| Material | 100% cotton |
| Made in | Portugal |
| Fit and size | KNWLS cuts jersey and stretch pieces in letter sizes: XS is a UK 6, S a UK 8, M a UK 10 and L a UK 12. The fit is close to the body by design. |
| Styling | Gemma styles it with sheer tights and a pointed boot. |
| Care | Machine wash at 30 degrees. |
About KNWLS
KNWLS is a London label founded in 2017 by Charlotte Knowles and Alexandre Arsenault, who met at Central Saint Martins. It first showed through Fashion East in 2018, was a finalist for the LVMH Prize in 2022, and was renamed from Charlotte Knowles to KNWLS in 2021. The house is known for corsetry, sheer printed mesh and sportswear seaming, and in 2025 it showed a collection with Nike at Milan Fashion Week. It is a Coveti editor favourite for nights out, fashion week and pieces with a sharper edge.
“The KNWLS Ace Long Sleeve Dress in Washed Blue is the piece we suggest to a customer who wants one item to set the tone of a whole outfit. It is made in 100% cotton.”
Gemma Deeks, Fashion Editor at Coveti
How KNWLS Compares
Shoppers cross-shopping the KNWLS Ace Long Sleeve Dress in Washed Blue typically also consider
Vivienne Westwood,
The Attico, and
Alexander Wang.
Vivienne Westwood shares the London corsetry heritage, The Attico the after-dark attitude, and Alexander Wang the mix of sportswear and body-con cutting. Explore the full
KNWLS collection at Coveti
to compare shapes and fabrics across the season.
SHIPPING AND AUTHENTICITY
- Authenticity guaranteed: 100% authentic KNWLS, verified by Coveti.
- Designed in London, United Kingdom, made in Portugal, shipped from our UAE and Australia hubs.
- Express shipping available worldwide, insured to 110% of value, signature required.
- Duties: most regions ship Delivered Duty Unpaid, so local duties and taxes fall due on import. Full terms are in the logistics and returns protocol.
Frequently Asked Questions
Is the KNWLS Ace Long Sleeve Dress in Washed Blue authentic?
Yes. Every KNWLS piece sold by Coveti is 100% authentic and authenticity-verified before dispatch, including the Ace Long Sleeve Dress in Washed Blue.
Is the KNWLS Ace Long Sleeve Dress in Washed Blue true to size?
KNWLS cuts jersey and stretch pieces in letter sizes: XS is a UK 6, S a UK 8, M a UK 10 and L a UK 12. The fit is close to the body by design.
What sizing does KNWLS use?
KNWLS uses UK sizing. Woven pieces are labelled UK 6 to 14, and jersey and knitwear are labelled XS to XL, where XS is a UK 6, S a UK 8, M a UK 10, L a UK 12 and XL a UK 14. Corsets and stretch pieces are cut close to the body, so take your usual size for the intended fit and the next size up for more room.
What fabric is the Ace Long Sleeve Dress in Washed Blue made from?
The Ace Long Sleeve Dress in Washed Blue is made in 100% cotton, and it is produced in Portugal.
What is KNWLS known for?
KNWLS is known for corsetry, sheer printed power mesh and anatomic sportswear seams. Its best-known pieces include the Halcyon top and leggings, the Claw Jacket and the Skinn dress, and in 2025 it launched a collection with Nike that included the Air Max Muse trainer and the Razr bag.
Who founded KNWLS?
KNWLS was founded in London in 2017 by Charlotte Knowles and Alexandre Arsenault, who met at Central Saint Martins. The label was called Charlotte Knowles until 2021, when it was renamed KNWLS. It showed with Fashion East from 2018 and was a finalist for the LVMH Prize in 2022.
Is KNWLS a luxury brand?
KNWLS is an independent London designer label that shows on the London Fashion Week schedule. At Coveti its pieces run from about 250 US dollars for KNWLS Nike jersey to about 2,950 US dollars for shearling outerwear, so it sits in contemporary luxury rather than heritage luxury.
Where can I buy KNWLS?
Coveti stocks KNWLS ready-to-wear and selected accessories, and ships worldwide. You can browse the full range on the KNWLS brand page. Every piece is authenticity-verified before dispatch, and express delivery is available through DHL Express and FedEx International Priority.
Where is KNWLS made?
This piece is made in Portugal. Across the collection, KNWLS produces in the United Kingdom, Portugal and Turkey, and the KNWLS Nike pieces are made in Nike factories in Asia.
How should I care for the Ace Long Sleeve Dress in Washed Blue?
Machine wash at 30 degrees.
Does Coveti ship KNWLS internationally?
Yes. Coveti ships KNWLS worldwide with express options through DHL Express and FedEx International Priority. Most regions ship Delivered Duty Unpaid, which makes the customer the importer of record for local duties and taxes. The full terms are in the logistics and returns protocol.
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Last updated 26-Oct-26 | Curated & authenticated by Coveti
