10% off first order: SISTER10
Get inspired by our lookbook

Formal

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

Luisa Cerano Sequin Bootcut Trousers Grey

Regular price £439.00 £219.00
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Riani Smart Seamed Trouser With Zip Pockets Fuchsia

Regular price £319.00 £155.00
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Riani Smart Seamed Trouser With Zip Pockets Black

Regular price £249.00 £199.00
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Marc Cain Drawstring Satin Trouser Black

Regular price £255.00 £125.00
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Marc Cain Textured Finish Trouser Black

Regular price £135.00 £66.00
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Riani Check Trouser With Metal Tape Side Bronze Check

Regular price £295.00 £88.50
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SET Full Length Ankle Zip Trousers With Chain Detail Black

Regular price £155.00 £38.00
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per 

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.