Smart Casual 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
206 products
ASOS
ASOS Black Slim Fit Tailored Suit Trousers
£45.00
Marks & Spencer
M&S Dark Grey Pin Stripe Stretch Suit Waistcoat
£50.00
River Island
River Island Pink Skinny Fit Stretch Suit Trousers
£25.00
ASOS
ASOS Harry Brown Raffi Navy Suit Trousers
£49.00
River Island
Mens River Island Brown Sim Fit Linen Blend Suit Jacket
£55.00
ASOS
ASOS ADAPTIVE Relaxed Tapered Suit Trousers In Black
£35.00
River Island
Mens River Island Grey Slim Fit Dogtooth Suit Trousers
£46.00
ASOS
ASOS Green Wool Suit Waistcoat
£30.00
River Island
Mens River Island Beige Skinny Fit Suit Jacket
£104.00
ASOS
ASOS Tapered Suit Trouser In Olive Green Brushed Flannel
£35.00
River Island
River Island Navy Slim Fit Textured Suit Trousers
£39.00
ASOS
ASOS DESIGN Brown Check Oversized Tapered Double Pleated Suit
£35.00
River Island
River Island Navy Corduroy Slim Fit Suit Trousers
£50.00
ASOS
ASOS Olive Green Crease Resistant Slim Suit Trouser
£35.00
River Island
River Island Brown Corduroy Slim Fit Suit Trousers
£50.00
ASOS
ASOS DESIGN Brown Skinny Suit Waistcoat
£30.00
River Island
Mens River Island Grey Skinny Fit Check Suit Jacket
£115.00
ASOS
ASOS DESIGN Brown Slim Suit Jacket
£55.00
River Island
Mens River Island Green Skinny Fit Textured Suit Jacket
£80.00
ASOS
ASOS DESIGN slim suit blazer in navy
£55.00
River Island
Mens River Island Green Skinny Fit Textured Suit Trousers
£40.00
ASOS
ASOS DESIGN Burgundy Slim Suit Blazer
£55.00
River Island
Mens River Island Blue Skinny Fit Suit Trousers
£32.00
ASOS
ASOS DESIGN Brown Relaxed Tapered Fit Suit Trousers
£30.00
Showing 72 of 206
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.