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    SO-ME is a trading name of SO-ME App Ltd. Registered in England and Wales. Toward Studio, Cambrian Buildings, Cardiff CF10 5FL. SO-ME earns commission from qualifying purchases. This does not affect pricing.

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    1. Home
    2. /Men
    3. /Clothing
    4. /Suits
    5. /Trouser Suits

    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

    Filter & Sort

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    ASOS ASOS DESIGN skinny suit waistcoat in brown
    ASOS

    ASOS Brown Wool Skinny Suit Waistcoat

    £30.00
    ASOS ASOS DESIGN slim suit trousers in blue
    ASOS

    ASOS DESIGN Blue Slim Suit Trousers

    £30.00
    ASOS ASOS DESIGN carrot fit suit trousers in stone
    ASOS

    ASOS DESIGN Stone Carrot Fit Suit Trousers

    £30.00
    ASOS ASOS DESIGN carrot fit suit trousers in blue
    ASOS

    ASOS DESIGN Blue Carrot Fit Suit Trousers

    £30.00
    ASOS ASOS DESIGN carrot fit suit trousers in olive green
    ASOS

    ASOS Olive Green Carrot Fit Suit Trousers

    £30.00
    ASOS ASOS DESIGN skinny suit waistcoat in burgundy
    ASOS

    ASOS DESIGN Burgundy Skinny Suit Waistcoat

    £30.00
    ASOS ASOS DESIGN slim suit blazer in light blue
    ASOS

    ASOS DESIGN slim suit blazer in light blue

    £55.00
    ASOS ASOS DESIGN slim suit blazer in navy
    ASOS

    ASOS DESIGN Navy Wool-Blend Slim Suit Blazer

    £55.00
    ASOS Threadbare regular fit lightweight suit in stone
    ASOS

    Threadbare regular fit lightweight suit in stone

    £100.00
    ASOS ASOS DESIGN slim suit jacket in navy pinstripe
    ASOS

    ASOS DESIGN Navy Pinstripe Slim Suit Jacket

    £85.00
    ASOS ASOS DESIGN slim double breasted suit jacket in navy
    ASOS

    ASOS DESIGN Navy Double-Breasted Slim Suit Jacket

    £55.00
    ASOS ASOS DESIGN slim suit blazer in black
    ASOS

    ASOS DESIGN slim suit blazer in black

    £55.00
    ASOS Harry Brown Giacomo slim fit suit trousers in dark green
    ASOS

    ASOS Dark Green Harry Brown Giacomo Slim Fit Suit Trousers

    £79.00
    ASOS ASOS DESIGN skinny suit trousers in brown
    ASOS

    ASOS DESIGN Brown Skinny Suit Trousers for Men

    £35.00
    ASOS ASOS DESIGN 100% summer wool tapered suit trousers in green
    ASOS

    ASOS Green Wool Blazer and Tapered Trousers Suit

    £50.00
    ASOS ASOS DESIGN 100% summer wool tapered suit trousers in brown
    ASOS

    ASOS Brown Wool Tapered Suit Trousers

    £50.00
    ASOS ASOS DESIGN wide suit trousers in navy pinstripe
    ASOS

    ASOS DESIGN Navy Pinstripe Wide Suit Trousers

    £35.00
    ASOS ASOS DESIGN wide suit trousers in beige wool
    ASOS

    ASOS Beige Wool Wide Suit Trousers

    £35.00
    ASOS Harry Brown Giacomo slim fit suit trousers in light blue
    ASOS

    ASOS Harry Brown Light Blue Slim Fit Suit Trousers

    £79.00
    ASOS Threadbare Tailored fit lightweight suit trousers in stone
    ASOS

    ASOS Stone Tailored Fit Lightweight Suit Trousers

    £35.00
    ASOS ASOS DESIGN tapered suit trousers in mid grey
    ASOS

    ASOS DESIGN Mid Grey Tailored Suit Trousers

    £40.00
    ASOS ASOS DESIGN skinny suit trousers in grey
    ASOS

    ASOS Grey Wool-Blend Skinny Suit Trousers

    £30.00
    ASOS ASOS DESIGN linen rich oversized tapered suit trousers in terracotta stripe
    ASOS

    ASOS Terracotta Stripe Linen Oversized Tapered Suit Trousers

    £40.00
    ASOS ASOS DESIGN skinny suit trousers in burgundy
    SALE
    ASOS

    ASOS DESIGN Burgundy Skinny Suit Trousers for Men

    £20.99£30.00

    Showing 144 of 206

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    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.