Black Slip Dresses: The Bias Cut Satin Slip, Styled

A black slip dress is the most useful slip you can own: thin straps, a lustrous fabric cut close to the body, and a colour that works from a weekday lunch to a black tie dinner. The bias cut satin version is the one designers keep returning to, and the newest at Coveti is the Allegro from Camilla and Marc, a washed black bias slip in midi and mini lengths, now in our designer dresses edit.

The two lengths are the Allegro Satin Bias Midi Dress in Washed Black and the Allegro Satin Bias Mini Dress in Washed Black, both part of the Camilla and Marc Resort 2027 drop. Their slight cowl neckline links them to the draped tops in our guide to cowl neck tops for women, and if you want the cut in more colours, the bias cut dresses edit goes wider. For satin in every length and shade, see our guide to satin dresses.

What is a satin slip dress?

A satin slip dress is a dress modelled on a lingerie slip: thin straps, a simple neckline and a close, fluid line, cut in a fabric with a satin sheen.

The slip has been an evening staple since the 1990s. What separates a good one from a forgettable one is the fabric and the cut. Shiny polyester satin shows every seam and crease; a sand-washed finish, like the one Camilla and Marc uses on the Allegro, softens the sheen to something closer to a matte glow. That makes the dress easier to wear in daylight and kinder in photographs.

What is a bias cut slip dress?

A bias cut slip dress is cut diagonally across the grain of the fabric, so it stretches slightly and skims the body instead of hanging straight.

Bias cutting uses more fabric and takes more skill, which is why it tends to appear in better slips. The diagonal grain lets the cloth fall into the waist and over the hip without darts, and the hem ripples a little as you walk. Camilla and Marc describes the Allegro as a 90s-inspired bias cut, and the brand applies the same technique to the Viele Textured Bias Skirt in Cream from this season, if you prefer the line as a separate.

Which satin slip dresses did Camilla and Marc release for Resort 2027?

Camilla and Marc released the Allegro Satin Bias Dress in washed black, in a midi and a mini, plus two slip-style camis and the strappy Dana Dress.

The Dana Dress in Black is not satin, but its georgette straps and low back put it in the same evening family. The Alvar Lace Cami in Black and the Dana Cami in Black give you the slip neckline as a top, which you can tuck into the Viele bias skirt for the look of a dress in two pieces. The Dana Cami in Cream is the lighter option for day.

How do you wear a black slip dress?

Wear a black slip dress with a sharp blazer and fine jewellery for evening, and with a fitted tee underneath and flat shoes for day.

The brand’s own note on the Allegro Midi is to throw a tailored blazer over the shoulders and keep the jewellery fine, and for the Mini it suggests a pointed heel and a small shoulder bag. Both are right. For the blazer, take the Lawrence Soft Blazer in Black; Camilla and Marc calls it the jacket to wear over everything from a slip dress to straight denim. Black on black in two textures, sand-washed satin under textured twill, looks deliberate rather than safe.

For a wedding, the Allegro Midi is the one the brand describes as the dress to reach for when the invitation says smart. Check the dress code first, then see our Camilla and Marc wedding guest outfits for colour if black feels too severe. A brighter alternative from the same drop is in red mini dresses.

How do you layer a slip dress for cooler weather?

Layer a slip dress in cooler weather with a fitted tee under it, a blazer over it and a long coat on top.

• Under: a fitted cotton tee such as the Siona Crew Fitted Tee in Soft White, which the brand describes as a fitted baby tee, keeps the bias line intact. For more cover, the Carmine Fitted Long Sleeve Tee in Black adds sleeves without bulk.
• Over: the Lawrence Soft Blazer, worn open.
• On top: the Arcadia Trench in Cream, with its buttonless wrap front and self-tie belt, for spring rain, then the Renley Shawl Collar Coat in Burgundy in faux fur when it turns properly cold.

Keep the layers close to the body so the slip still moves. In the southern spring, the tee and blazer are enough; in a northern autumn, add sheer black tights and a knee boot with the midi length.

The satin and slip dresses from other labels at Coveti

Coveti also stocks slip dresses from knwls, St. Agni and Dries Van Noten, and satin dresses from Simon Miller and Versace.

• knwls Elisir Slip Dress in Black, a second black slip with a different attitude.
• St. Agni Silk Twill Relaxed Slip Dress in Milk, a looser silk alternative.
• Dries Van Noten Jacquard slip dress in Light Green, for pattern.
• Simon Miller Taja Satin Mini Dress in Black and the Bea Satin Lace Midi Dress in Black.
• Versace Draped Envers-Satin Midi Dress in Black and the Silk-Satin Mini Dress in White.

The wider Camilla and Marc dress range, from tailored midis to the new fringe, is in Camilla and Marc dresses, and the fringe story has its own guide in fringe dresses.

Does the Allegro slip dress run true to size?

Yes, both Allegro dresses are marked true to size and cut in AU 6 to 14.

AU sizing reads the same as UK, so an AU 8 is a UK 8 and a US 4. The house model is 180 cm and wears an AU 8, so the midi will fall longer on a shorter frame. Coveti displays a UK 4 to 18 ladder and sizes the brand does not cut show as unavailable. A bias cut has some give across the hip but none at the straps, so if you are between sizes, go by the bust. The Camilla and Marc size guide has the full chart.

Frequently Asked Questions

What is a bias cut slip dress?

A bias cut slip dress is cut diagonally across the grain of the fabric, so it stretches slightly and skims the body. The Camilla and Marc Allegro is a 90s-inspired bias cut slip in washed black satin.

What is the Allegro slip dress made of?

The Allegro Satin Bias Dress is 55% cupro and 44% rayon with a sand-washed satin finish. Dry cleaning is recommended.

How do you style a black slip dress?

For evening, throw a tailored blazer over the shoulders and keep the jewellery fine. For day, wear a fitted tee underneath with flat shoes.

How do you wear a slip dress in cold weather?

Add a fitted tee under it, a blazer over it and a long coat on top. With the midi length, sheer black tights and a knee boot finish the look.

Is the Allegro available in a mini and a midi?

Yes. Coveti stocks the Allegro Satin Bias Midi Dress and the Allegro Satin Bias Mini Dress, both in washed black.