Julianne Moore stuns in a halter dress while Jessica Chastain

Julianne Moore stuns in a halter dress while Jessica Chastain turns heads braless in a backless top at the Sustainable Fashion Awards during Milan Fashion Week

Julianne Moore and Jessica Chastain impressed at the Sustainable Fashion Awards ceremony during Milan Fashion Week on Sunday.

Actress Julianne, 62, looked incredible in a brown halter midi dress with tight knot detailing at the waist.

The “Still Alice” star highlighted her figure in a pair of coordinating pointed-toe heels and carried her belongings in a black clutch.

Julianne accessorized her outfit with a pair of gold earrings and styled her auburn locks straight.

Jessica looked nothing short of sensational for the evening in a white backless top and baggy black trousers.

Stylish: Julianne Moore dressed to impress on Sunday as she attended the Sustainable Fashion Awards during Milan Fashion Week Looking good: Jessica Chastain looked nothing short of sensational this evening in a white backless top and baggy black pants

Stylish: Julianne Moore (left) and Jessica Chastain (right) impressed at the Sustainable Fashion Awards ceremony during Milan Fashion Week on Sunday

Glamorous: Actress Julianne, 62, looked incredible in a brown halter midi dress with ruched knot detailing at the waist

Glamorous: Actress Julianne, 62, looked incredible in a brown halter midi dress with ruched knot detailing at the waist

The 46-year-old actress turned heads as she went braless in the bejeweled dress.

She carried her belongings around in a stylish red handbag and styled her long auburn locks in luxurious waves.

To accessorize her outfit, The Help star opted for a gold chunky bracelet as she made a splash on the red carpet.

Meanwhile, Olivia Palermo turned heads in a bronze pleated dress with cut-outs and a stunning high neckline.

The 37-year-old socialite went leggy in the number, which featured a daring thigh-high slit and added inches to her figure with a pair of gold metallic heels.

She carried her belongings around in a white handbag and accessorized with a set of gold drop earrings.

Sadie Sink showed off her sensational figure in a glamorous pink satin dress with a stylish wrap slit at the side.

The 21-year-old Stranger Things star enhanced her figure in a pair of black pointed-toe heels and stored her belongings in a matching clutch.

Amazing: The 'Still Alice' star highlighted her figure in a pair of coordinating pointed-toe heels and carried her belongings in a black clutch

Amazing: The ‘Still Alice’ star highlighted her figure in a pair of coordinating pointed-toe heels and carried her belongings in a black clutch

Incredible: The 46-year-old actress turned heads when she went braless in the bejeweled dress Sensational: She carried her belongings around in a stylish red handbag and styled her long auburn locks in luxurious waves

Incredible: The 46-year-old actress turned heads when she went braless in the bejeweled dress

Get involved: Sadie Sink was also at the event in Milan on Sunday evening

Get involved: Sadie Sink was also at the event in Milan on Sunday evening

Stunning: The “Stranger Things” actress attracted attention in an elegant pink evening dress The finishing touch: She completed her look with backless black heels and a matching clutch

Stunning: The “Stranger Things” actress attracted attention in an elegant pink evening dress

Daring: Meanwhile, Olivia Palermo turned heads in a bronze pleated dress with cutouts and a stunning high neckline

Daring: Meanwhile, Olivia Palermo turned heads in a bronze pleated dress with cutouts and a stunning high neckline

Bold: The 37-year-old socialite went leggy in the number, with a daring thigh-high slit and a pair of gold metallic heels that added several inches to her figure Attracted attention: Bianca Balti wowed in a racy, transparent black dress, which she combined with matching long gloves

Bold: Olivia (left) showed off her long legs in the outfit, which featured a daring thigh-high slit and added inches to her figure in a pair of gold metallic heels, while Bianca Balti (right) wowed in a racy sheer black dress to match long gloves

Dressed to impress: The model showed off her sensational figure in the daring outfit, which she accessorized with a silver chain bralette and a pair of chandelier earrings

Dressed to impress: The model showed off her sensational figure in the daring outfit, which she accessorized with a silver chain bralette and a pair of chandelier earrings

Wow: Also in attendance was actress and model Hari Nef, who left little to the imagination in a silver, iridescent, sheer dress that she paired with nude heels and large hoop earrings

Wow: Also in attendance was actress and model Hari Nef, who left little to the imagination in a silver, iridescent, sheer dress that she paired with nude heels and large hoop earrings

She accessorized with a chunky jeweled bracelet and a pair of bold pink drop earrings.

Sadie neatly styled her long auburn locks and applied a stunning makeup palette, including black smoky eyeshadow.

Also in attendance was American actress and model Hari Nef, who left little to the imagination in a silver iridescent sheer dress which she paired with nude heels and large hoop earrings.

Bianca Balti wowed in a racy, transparent black dress, which she combined with matching long gloves.

The model showed off her sensational figure in the daring outfit, which she accessorized with a silver chain bralette and a pair of chandelier earrings.

Edward Enninful, editor-in-chief of British Vogue, cut a dapper figure in a black three-piece suit and white open-collar shirt.

He attended the event with model Adut Akech, who showed off her legs in a black halter dress.

Smart: British Vogue Editor-in-Chief Edward Enninful cut a dapper figure in a black suit as he posed with model Adut Akech, who looked very leggy in a black dress

Smart: British Vogue Editor-in-Chief Edward Enninful cut a dapper figure in a black suit as he posed with model Adut Akech, who looked very leggy in a black dress

Friends: Jessica later posed with actor and long-time boyfriend Jeremy Strong, who looked dapper in a navy suit and orange bow tie

Friends: Jessica later posed with actor and long-time boyfriend Jeremy Strong, who looked dapper in a navy suit and orange bow tie

Hot!  Jessica flashed her smile as she showed off her amazing figure in the backless dress

Hot! Jessica flashed her smile as she showed off her amazing figure in the backless dress

Wow: TikTok star Meredith Duxbury grabbed attention as she flaunted her toned midriff in a busty black cut-out hooded dress Stylish: Bianca looked sensational as she posed on the red carpet

Wow: TikTok star Meredith Duxbury grabbed attention as she flaunted her toned midriff in a busty black cut-out hooded dress

Dazzling!  Actress and model Diana Ghenea kept all eyes on her in a silver tasseled midi dress which she paired with pink metallic knee-high boots

Dazzling! Actress and model Diana Ghenea kept all eyes on her in a silver tasseled midi dress which she paired with pink metallic knee-high boots

Dramatic: Model Coco Rocha stunned in a gold satin dress which she paired with a matching sequin hooded cape

Dramatic: Model Coco Rocha stunned in a gold satin dress which she paired with a matching sequin hooded cape