Formal Trouser Suits
A suit that fits properly changes everything. Classic single-breasted, contemporary slim-fit, double-breasted, unstructured and relaxed, we bring together options from M&S, ASOS, and designer labels alongside preloved suits where the quality genuinely speaks for itself. A preloved designer suit in quality wool will outperform a new budget suit in every way. Use our filters or AI stylist to find the right fit for your occasion and budget.
Products
127 products
SALE
ASOS
ASOS DESIGN Slim Suit Trousers in Black Crepe
£30.00£35.00
ASOS
ASOS DESIGN Oversized Tapered Suit Trousers in Camel
£35.00
ASOS
ASOS Straight Suit Trousers in Black
£30.00
ASOS
ASOS Pinstripe Straight Suit Trousers in Dark Green
£35.00
SALE
ASOS
ASOS Relaxed Tapered Suit Trousers in Black
£25.50£30.00
ASOS
ASOS DESIGN Check Tapered Suit Trousers in Grey
£35.00
SALE
ASOS
ASOS DESIGN Slim Suit Trousers in Navy Herringbone
£28.00£35.00
ASOS
ASOS Skinny Suit Trousers in Light Brown Twill
£35.00
ASOS
ASOS Slim Suit Trousers in Navy Texture
£35.00
SALE
ASOS
ASOS Wide Suit Trousers with Elasticated Waist in Black
£26.50£35.00
SALE
ASOS
ASOS Skinny Wool Suit Trousers in Beige
£30.00£40.00
ASOS
ASOS DESIGN Slim Suit Trousers in Light Blue
£40.00
ASOS
ASOS Slim Suit Trousers in Dark Green
£35.00
SALE
ASOS
ASOS DESIGN Slim Tuxedo Suit Trousers with Satin Detail in Black
£26.50£35.00
SALE
ASOS
ASOS DESIGN Wool Look Skinny Suit Trousers in Brown
£26.50£35.00
ASOS
ASOS Skinny Suit Trousers with Washable Wool in Navy
£40.00
SALE
ASOS
ASOS DESIGN Slim Suit Trousers in Navy
£26.50£35.00
ASOS
ASOS DESIGN Slim Suit Trousers in Dark Green
£40.00
ASOS
ASOS Extreme Tapered Suit Trousers in Black Twill
£35.00
SALE
ASOS
ASOS Slim Suit Trousers in Navy
£26.50£35.00
ASOS
ASOS DESIGN Slim Suit Trousers in Linen Rich Beige
£40.00
ASOS
ASOS Oversized Tapered Suit Trouser in Brown
£35.00
ASOS
ASOS Dark Blue Slim Suit Trouser
£75.00
ASOS
ASOS Selected Slim Fit Suit Trouser in Black
£70.00
Showing 120 of 127
Frequently Asked Questions
How should a men's suit fit?▾
Jacket shoulders at yours. Button without pulling. Sleeves showing about 1.5cm of shirt cuff. Trousers at your natural waist, breaking slightly at the shoe, room to sit comfortably. Modern fits are slimmer through the body and leg without being tight. If buying preloved, budget for tailoring, it transforms the result.
What colour suit is most versatile?▾
Navy. Works for business, weddings, formal events, and pairs with virtually any shirt and tie. Charcoal grey is equally adaptable. Black is best for very formal and evening occasions. Start with navy and grey, then add mid-blue or tan.
Is it worth buying a preloved suit?▾
One of the smartest things you can do on SO-ME. A preloved designer suit in wool or cashmere will outperform a new budget suit in fit, drape, and longevity. Have it dry-cleaned and tailored to your measurements, even hemming the trousers and adjusting the waist makes a dramatic difference.