Best High‑Street Formalwear Brands: Stylish, Smart, and Size-Perfect

Formalwear has moved into the everyday—but elevating any outfit only happens when the fit is flawless. That’s where Tellar.co.uk comes in, matching your real body measurements to 1,500+ brands. Here’s our top picks for formalwear, complete with sizing advice and live Tellar links.

🔹 Women’s Formalwear Picks

1. Reiss – Tailored EleganceReiss offers sharp blazers and sophisticated dresses—but don’t let slim-fit tricks on you. Many styles run snug, so sizing up is common.🔗 Explore fit notes and sizing tips in our Reiss feature: Reiss Clothing: What to 2. & Other Stories – Minimalist PolishFor clean cuts with feminine tailoring. These pieces generally fit true to size but occasionally run narrow over the bust or hips.🔗 Discover accuracy in our guide: & Other Stories fit & sizing at Tellar

3. Mango – Euro Tailoring for LessMango’s “Selection” suiting is sleek—just watch for narrow fits across the hip.🔗 Find your fit in Mango with: How to Find Your Size in Mango at Tellar

4. COS – Architectural StyleKnown for elevated minimal pieces with a modern edge. Generous sizing makes COS great for taller frames.🔗 See our full analysis: COS sizing at Tellar

5. Hobbs – Refined British TailoringClassic cuts—perfect for occasionwear. Just be aware of size variation between dresses and jackets.🔗 Get match-ready: Hobbs sizing guide at Tellar

🔹 Men’s Formalwear Picks

1. M&S Autograph – Everyday SharpenedReliable cuts in slim, regular, and tailored fits—great value for formal staples.🔗 Compare M&S to Next sizing here: [M&S vs Next size comparison at Tellar]

2. Charles Tyrwhitt – Crisp ClassicsExceptionally sized dress shirts and workwear with a polished fit.🔗 Learn your size: Charles Tyrwhitt sizing guide at Tellar

3. Next – Accessible & InclusiveWith short/regular/long options, Next is size-friendly.🔗 Check your size: [What Size Am I in Next? at Tellar]

4. Moss – Occasion SpecialistsFormerly Moss Bros; now offers suits with rental and mix-and-match options.🔗 Match your size: Moss sizing guide at Tellar

5. River Island – Trendy/Formal CrossoverEdgy cuts in suiting—but shoulders often run small.🔗 Fit found here: River Island sizing insights at Tellar

Style Picks by Occasion

Job Interview

• Women: Reiss tailored dress or & Other Stories blazer + trousers

• Men: M&S Autograph navy suit with CT crisp white shirt

Smart Work Capsule

• 2 Blazers (neutral + statement)

• 2 Trousers (slim + relaxed)

• 3 Shirts or pairs of faculty

• 1 standout dress or coordinated set

Wedding Guest

• Women: COS elegant midi or Reiss satin dress

• Men: Moss slim wool suit or CT navy 3-piece

Tailoring & Fit Hacks

1. Shoulders first—only perfect off-the-rack reference is here.

2. Easy tweaks: hems/waistbands are inexpensive.

3. Size shifts: don’t upsize more than two sizes or you'll distort proportions.

4. Prefer no alterations? Let Tellar.co.uk find your size first—01.

Why Fit > Brand

A high-street piece that fits is always elegant. With Tellar’s data-mapped sizing, you'll avoid returns and get perfect fits from high-street and designer labels alike.

📌 Learn how it works and start building your size profile for free here: Create your Tellar profile

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