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Formal Trousers

Explore our collection of women’s formal trousers, perfect for work, events, and evening occasions. Discover tailored styles, smart pull-ons, and luxury fabrics.

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Sale 50% off

Joseph Ribkoff Wide Leg Pleat Jacquard Trouser With Split Hem Pearl

£175.00 £87.50 50% off
Save £87.50
Only One Left

Joseph Ribkoff Classic Wide Leg Stretch Trouser Java 4266

£155.00
Only One Left

Marc Cain Washington Flat Front Pull On Relaxed Trouser Beige 127

£199.00

Joseph Ribkoff Classic Wide Leg Stretch Trouser Cream

£155.00
Sale 50% off

Silk95 Phoenix Silk Tie Hem Combat Trousers With Pockets Navy

£299.00 £149.50 50% off
Save £149.50
Sale 30% off

Silk95 Amalfi Elasticated Waist Wide Leg Silk Trouser Mink

£280.00 £196.00 30% off
Save £84.00
Sale 30% off

Marc Cain Waukee Wide Leg Smart Linen Trouser Cobalt

£269.00 £188.00 30% off
Save £81.00

Joseph Ribkoff Slim Leg Pull On Trouser With Ankle Split Black

£155.00
Sale 50% off

Oui Jersey Smart Trouser With Elastic Back Navy

£139.00 £69.50 50% off
Save £69.50
Only One Left

Marc Cain Washington Wide Leg Elasticated Waist Trouser Off White

£215.00
Sale 20% off

Riani Smart Seam Front Cropped Cotton Trouser White

£239.00 £191.20 20% off
Save £47.80
Only One Left

Robell Bella 09 Slim Fit Pinstripe Pull On Trouser Navy/white 69

£69.00
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Our Purpose

At Sister, our purpose is simple: to make fashion personal. We believe shopping should feel inspiring, not overwhelming, and our boutique offers a place where you can build your whole wardrobe without needing to go anywhere else. Every piece we stock is chosen to bring joy, confidence, and practicality into our customers’ everyday lives.

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Exclusive Pieces

Every piece is selected for individuality and quality.

Trusted for Generations

35 years in business, customer returning for 30+ years.

Personal Touch

Styling advice, honest fit guidance & over the phone support.