I Set Myself A Strict Black Friday Budget to Elevate My Wardrobe—13 COS, Mango and Ref Pieces I Chose

In case you haven't noticed, the Black Friday fashion deals have officially begun—and with it comes a wave of chic deals that feel almost impossible to ignore. Still, if you’re being sensible (as I’m attempting to be), it’s worth setting a strict budget to keep the excitement from turning into chaos. For me, a £300 limit is the perfect sweet spot: focused enough to avoid impulse buys, but generous enough to secure timeless, high-quality pieces I’ll genuinely wear for years—plus a few French-inspired staples I can’t resist. And the three high-street brands I know will deliver exactly that? COS, Mango and Reformation.

Each one offers something distinct. COS remains my go-to for elevated wardrobe foundations—from sleek merino basics like the best-selling Merino Wool Top to the cult-favourite Arch Tapered Jeans every chic fashion editor seems to own. Mango is unmatched for outerwear and tailoring, consistently producing floor-skimming wool coats and sharply cut trousers that look far more expensive than their price tags. And then there’s Reformation, the rare unicorn blending sustainability with exceptional design. Its Clara Cashmere Cardigan is a bestseller for good reason, while pieces like the Gale Satin Trousers bring a refined elegance to evening dressing.

Below, I’ve curated the chicest Black Friday finds from COS, Mango and Reformation—pieces that fit my £300 budget, elevate a winter wardrobe instantly and align with that understated, French-leaning aesthetic I return to year after year.

Shop The Best Chic COS, Reformation and Mango Black Friday Finds

COS

Relaxed Twill Wide-Leg Trousers

Tailored twill trousers with a full, draped leg; modern, smart and endlessly wearable.

Reformation

Clara Cashmere Crew Cardigan

Yes, the best-selling Clara cardigan is really on sale. Slim, chic and very French-girl over denim.

COS’s signature sculptural denim: a tapered leg with a subtle curve that instantly makes outfits look more polished.

MANGO

Oversized Wool Coat With Maxi Lapels - Women | Mango United Kingdom

A clean, oversized wool coat that nails that quiet luxury silhouette.

Reformation

Gale Satin Mid Rise Bias Pant

A party-wear dream. Fluid satin trousers with a flattering bias cut, these trousers would look just as good with a knit as a camisole.

COS

Merino Wool High Neck Top

A constant best-seller. The fine-merino high neck is perfect for layering under coats or chunky knits. Clean, minimal, impossibly chic.

COS

Minimal Leather Trainers

Yes, trainers can be elevated and the popular minimalist leather trainers are the kind of pair that elevates even basic leggings or denim.

Reformation

Cove Cashmere Oversized Crew

This chic cashmere jumper will be the anchor of your winter wardrobe.

COS

Draped Merino Wool V-Neck Jumper

From the drape to the v-neck, this is so chic.

MANGO

Suede Leather Shopper Bag

A roomy suede shopper in a rich neutral tone, chic enough for work, practical enough for everyday. The soft structure adds effortless polish.

COS

Oversized Double-Breasted Wool Long Coat

A premium double-faced wool coat with a shawl collar that feels both architectural and timeless. Pure quiet-luxury outerwear.

Reformation

Cary High Rise Slouchy Wide Leg Jeans

High-rise, drapey wide-legs that bring “editor off-duty” energy to any outfit. Structured but relaxed in the best way.

COS

Off-The-Shoulder Merino Wool Jumper

MANGO

Pleated Wide Leg Trousers

Tailored wide-leg trousers with soft pleating for just the right amount of volume. Ideal for smart dressing or elevating simple basics.

COS

Marais Mini Bowling Bag - Suede

The perfect suede bag, now under £80.

Reformation

Jadey Cashmere Oversized V-Neck Sweater

Sumptuously soft with a relaxed drape, this oversized V-neck is the ultimate throw-on knit for chic, effortless layering.

MANGO

Mid-Rise Straight Jeans

Classic straight-leg denim with a clean, modern cut. Perfect with loafers, trainers or a crisp shirt tucked in.

COS

Alpaca Merino Wool Leggings

MANGO

Bouclé Jacket With Jewel Buttons

A polished bouclé jacket trimmed with jewel-tone buttons — the perfect high-street take on French-girl tailoring. Wear with denim for contrast.

Reformation

Vida Low Rise Pant

A sleek, low-rise trouser with a fluid leg. Modern, flattering, and surprisingly versatile — wear with an oversized knit for balance.

MANGO

Round-Neck Knitted Sweater

A soft, simple crew knit designed for layering. Lightweight with a refined rib, it’s the kind of staple you’ll wear on repeat.

Reformation

Bethany Ballet Flat

A refined ballet flat with a square toe and soft leather finish; elegant, minimal and perfect for everyday wear.