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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

    93 products

    Filter & Sort

    -
    ASOS ASOS DESIGN slim suit trousers in black subtle stripe
    SALE
    ASOS

    ASOS DESIGN Slim Suit Trousers in Black Subtle Stripe

    £28.00£35.00
    ASOS ASOS DESIGN oversized tapered suit trousers in camel
    ASOS

    ASOS DESIGN Oversized Tapered Suit Trousers in Camel

    £35.00
    ASOS ASOS DESIGN oversized tapered suit trousers in stone with linen
    SALE
    ASOS

    ASOS Oversized Tapered Suit Trousers in Stone

    £32.00£40.00
    ASOS ASOS DESIGN slim suit trousers in black linen rich twill
    ASOS

    ASOS DESIGN Slim Suit Trousers in Black Linen Rich Twill

    £40.00
    ASOS ASOS DESIGN relaxed tapered suit trousers in beige fine twill
    SALE
    ASOS

    ASOS DESIGN Relaxed Tapered Suit Trousers in Beige

    £26.50£35.00
    ASOS ASOS DESIGN skinny suit trousers in charcoal wool look herringbone
    SALE
    ASOS

    ASOS Skinny Suit Trousers in Charcoal Wool Look Herringbone

    £26.50£35.00
    ASOS ASOS DESIGN relaxed tapered suit trousers in burgundy herringbone
    SALE
    ASOS

    ASOS DESIGN Slim Fit Burgundy Herringbone Suit Trousers

    £26.50£35.00
    ASOS ASOS DESIGN wool mix slim suit trousers in khaki herringbone
    ASOS

    ASOS Slim Wool Mix Suit Trousers in Khaki Herringbone

    £40.00
    ASOS ASOS DESIGN slim suit trousers in linen rich light blue twill
    ASOS

    ASOS DESIGN Slim Suit Trousers in Light Blue

    £40.00
    ASOS ASOS DESIGN barrel suit trousers in olive green twill
    ASOS

    ASOS DESIGN Olive Green Twill Barrel Suit Trousers

    £35.00
    ASOS ASOS DESIGN loose suit trousers in light blue
    ASOS

    ASOS Loose Suit Trousers in Light Blue

    £35.00
    ASOS ASOS DESIGN mix & match linen rich slim suit trousers in stone
    ASOS

    ASOS DESIGN Slim Suit Trousers in Stone

    £40.00
    ASOS ASOS DESIGN relaxed tapered suit trousers in cream
    ASOS

    ASOS Relaxed Tapered Suit Trousers in Cream

    £35.00
    ASOS ASOS DESIGN slim suit trousers in linen rich sage twill
    ASOS

    ASOS DESIGN Slim Suit Trousers in Linen Rich Sage

    £40.00
    ASOS ASOS DESIGN slim suit trousers in linen rich beige twill
    ASOS

    ASOS DESIGN Slim Suit Trousers in Linen Rich Beige

    £40.00
    ASOS ASOS DESIGN slim suit trousers in linen rich stone twill
    ASOS

    ASOS DESIGN Slim Suit Trousers in Stone Twill

    £40.00
    ASOS Selected slim fit suit trouser in black
    ASOS

    ASOS Selected Slim Fit Suit Trouser in Black

    £70.00
    ASOS Jack & Jones super slim suit trouser in dark green
    ASOS

    ASOS Jack & Jones Super Slim Suit Trousers in Dark Green

    £35.00
    ASOS ASOS DESIGN wide suit trousers in neutral pinstripe
    ASOS

    ASOS DESIGN Wide Suit Trousers in Beige Pinstripe

    £35.00
    ASOS ASOS DESIGN skinny suit trouser in brown
    ASOS

    ASOS DESIGN Skinny Suit Trouser in Brown

    £30.00
    ASOS Topman slim tux suit trousers in black
    ASOS

    ASOS Topman Slim Tux Suit Trousers in Black

    £45.00
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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.