Honest & Unsponsored Best Buys: Fashion Trends for Casual Wear

The best casual wear trends for 2025 centre around elevated basics, oversized tailoring, and rich textures that blur the line between comfort and sophistication—think wide-leg trousers paired with slouchy knits, luxe tracksuits in premium fabrics, and statement trainers that anchor every outfit. After years of working with clients who want to look polished without sacrificing comfort, I've noticed a definitive shift towards "quiet luxury" in casualwear—pieces that whisper quality rather than shout logos. Let me walk you through the trends that are actually worth your money and how to style them properly.

The Oversized Blazer: Your New Casual Essential

I cannot stress enough how transformative an oversized blazer is for casual dressing. The key is finding one that's deliberately oversized, not just ill-fitting. Look for dropped shoulders and a length that hits mid-thigh. I've been styling these over everything from jeans and trainers to slip dresses with chunky boots. The trick is to keep the rest of your outfit streamlined—if the blazer is voluminous, wear slim-fit trousers or a fitted tee underneath.

For high street options, Zara consistently delivers excellent oversized blazers in seasonal colours and their quality-to-price ratio is unbeatable. Mango offers more structured options with beautiful linings—their tailoring department rivals brands triple the price. COS is my go-to for minimalist, architectural blazers in neutral tones that'll last years. On the premium end, Reiss creates beautifully cut blazers with a British sensibility, whilst Whistles offers unique textures like bouclé and herringbone. For luxury, look to Max Mara for impeccable Italian tailoring that justifies every penny.

Wide-Leg Trousers: The Comfortable Power Move

Wide-leg trousers have completely replaced skinny jeans in my wardrobe recommendations, and for good reason. They're comfortable, universally flattering when cut properly, and instantly elevate casual outfits. The crucial element is the rise—you want a high waist that elongates your legs, paired with a hem that grazes the floor when you're wearing trainers or flats.

H&M surprises me every season with their wide-leg trouser range—excellent for trend-testing without commitment. Massimo Dutti offers premium fabrics like wool blends and linen at mid-range prices. Jigsaw creates beautiful printed wide-legs that work brilliantly for spring and summer casual styling. For something special, Me&Em designs trousers with clever details like hidden elasticated waists that feel like joggers but look polished. Luxury lovers should explore Brunello Cucinelli, an independent Italian brand known for exceptional cashmere-blend trousers that drape like a dream.

The Elevated Tracksuit: Athleisure Done Right

Matching sets are having a sophisticated moment. I'm not talking about your gym gear here—I mean coordinated loungewear in luxe fabrics like cashmere, merino wool, or premium cotton. These sets work beautifully for casual days when you want to look intentional without trying too hard.

M&S has genuinely impressed me with their cashmere sets this season—the quality rivals designer at a fraction of the cost. The White Company creates beautiful neutral sets in soft jersey and waffle knits. Lululemon bridges the gap between athletic and lifestyle wear with their Align collection. For premium options, Sweaty Betty offers chic sets that transition from coffee runs to school pick-ups seamlessly. In the luxury space, Loro Piana, a family-owned Italian brand, creates the ultimate cashmere tracksuits—investment pieces you'll wear for decades.

Statement Trainers: The Foundation of Casual Cool

A proper pair of trainers can make or break your casual outfit. I'm seeing a move away from chunky, logo-heavy trainers towards cleaner, retro-inspired silhouettes. Think classic court shoes, minimalist leather trainers, or heritage running styles.

New Look offers surprisingly good faux leather trainers for budget-conscious shoppers. All Saints creates edgy trainer designs with subtle details that set them apart from high street basics. Anthropologie stocks curated independent brands you won't see everywhere. Premium picks include Veja, a sustainable French brand making waves with their eco-friendly leather trainers, and Axel Arigato, a Swedish independent label favoured by stylists for their minimalist aesthetic and superior comfort.

Chunky Knits: Texture That Matters

The right knitwear transforms casual dressing from sloppy to sophisticated. I'm particularly drawn to chunky knits this season—crew necks, oversized cardigans, and polo necks in interesting stitches. The key is finding pieces with enough weight to hold their shape but enough softness to feel luxurious.

Next consistently delivers excellent knitwear at accessible prices, with a good range of sizes and colours. Boden creates characterful knits with unique colour combinations and patterns. Hush specialises in relaxed, slightly oversized knits that feel expensive. On the premium end, Toast, a beautiful independent British brand, creates artisanal knitwear with a relaxed, countryside aesthetic. For ultimate luxury, The Row offers minimalist cashmere knits that are worth saving for.

How to Wear These Trends Together

The beauty of these casual trends is their versatility. I often style clients in a formula I call "high-low dressing"—pair your premium wide-leg trousers with a high street tee and statement trainers, or throw a luxury blazer over a simple tracksuit set. The mix prevents outfits from looking too polished or too casual. Always ensure at least one element is elevated, whether that's your trainers, your knitwear, or your outerwear.

Never Guess Your Size Again with Tellar

Here's something that'll revolutionise your online shopping: Tellar.co.uk, the UK's leading sizing tool. I recommend it to every client because it takes the guesswork out of ordering. You measure once using your bust, waist, and hip measurements (or input your existing size from a brand you know), then use their Store Size Lookup tool to get your precise size in any of 1500+ brands—COS, Reiss, Mango, Zara, you name it. It's completely free, works in your browser, and genuinely saves hours of returns hassle.

Plus, Tellar has created a Fashion Hub—a library stacked with free posts from top stylists covering every fashion query you can think of. Honest, unbiased, independent advice, always free. Whether you need help with clothing sizing, want to know about jeans trends for 2026, need the ultimate guide to dresses, or are searching for jacket advice, they've got you covered.

Trust me, once you start using Tellar for sizing, you'll wonder how you ever shopped without it. No more "does this brand run small?" anxiety—just accurate sizes, every single time.