

5 ways to style a blazer
Intentional silhouettes and a pared-back palette showcase the transformative power of the COS blazer.
5 ways to style a blazer


Intentional silhouettes and a pared-back palette showcase the transformative power of the COS blazer.
The blazer is one of the hardest-working pieces in the COS wardrobe. Few pieces move as seamlessly between occasions, adding polish to everyday dressing while adapting easily to elevated settings. Thoughtful proportions, considered fabrics and versatile colour palettes ensure the blazer remains timeless.
There are endless different ways to style a blazer. The key principles are:
• Balancing proportion through fit and layering.
• Adding structure to relaxed pieces through tailoring.
• Mixing casual and refined elements.
• Considering fabric and silhouette.
• Building multiple looks around one key piece.
The blazer is one of the hardest-working pieces in the COS wardrobe. Few pieces move as seamlessly between occasions, adding polish to everyday dressing while adapting easily to elevated settings. Thoughtful proportions, considered fabrics and versatile colour palettes ensure the blazer remains timeless.
There are endless different ways to style a blazer. The key principles are:
• Balancing proportion through fit and layering.
• Adding structure to relaxed pieces through tailoring.
• Mixing casual and refined elements.
• Considering fabric and silhouette.
• Building multiple looks around one key piece.




1. DEMIN FOR EVERYDAY EASE
When considering how to style a blazer, denim remains one of the most versatile starting points. The contrast between relaxed denim and structured tailoring creates a sense of balance.
Style an oversized blazer with classic straight-leg jeans – denim has an effortless, off-duty feel, while the clean tailored lines lend refinement. Keep the rest of the look simple with a white T-shirt, ribbed tank top or a fine-knit base layer depending on the season.
Neutral blazers in black, navy, charcoal or chocolate offer the greatest versatility, pairing effortlessly with light and dark denim washes. Keep accessories and footwear understated – loafers or leather sandals add timeless appeal.


2. MATCHING TAILORING
Modern tailoring embraces ease through relaxed shapes and softer construction. Pairing a blazer with matching tailored trousers creates a coordinating set that feels considered yet understated. A tonal palette brings visual continuity while allowing texture and silhouette to take centre stage.
A crisp cotton shirt, lightweight knit or ribbed cotton tank echoes the clean lines of tailoring. Opt for a classic leather tote bag and leather loafers or ballet flats.


3. CONTRASTING SILHOUETTES
Contrast the sharp tailoring of a blazer with softer, fluid pieces to add visual interest and movement. A blazer styled over a slip offers an elegant balance between structure and softness. Wide-leg trousers in fluid fabrics such as silk add textural contrast and depth.
Accessories further refine the look – a sculptural bag, understated jewellery and leather footwear reinforce the minimal aesthetic.


4. SUMMER TAILORING
Tailoring is often associated with the autumn-winter wardrobe, but a blazer has equal styling power in the spring-summer season. A blazer and shorts in coordinating linen provides a modern take on summer dressing, retaining the clean lines of classic tailoring while introducing a relaxed, seasonal feel.
Layer a blazer over a simple tank or T-shirt for a clean, minimal foundation. Leather sandals are relaxed yet polished, while loafers or ballet flats are essential for summer city breaks.


5. TRANSITIONAL DRESSING
The blazer is an invaluable layering piece that bridges the gap between seasons. Fine-gauge knitwear or funnel-neck tops style effortlessly beneath a blazer, providing lightweight warmth. When the weather cools, blazers can be layered comfortably beneath oversized outerwear.
Tonal and textural contrast lend character to transitional looks. Wool, brushed textures and jacquard add nuance. Complete the outfit with leather boots or loafers and seasonal accessories such as leather gloves and wool scarves.
Blazers are one of the most versatile pieces in the COS wardrobe as they can be styled in various ways, depending on the season and occasion. When considering what to wear with a blazer, the key pieces are:
• Tailored trousers.
• Denim.
• Tailored shorts.
• Midi skirts.
• Fine-knit layers.
• T-shirts and tank tops.
• Loafers, trainers, boots or sandals.
A blazer should complement the pieces in your existing wardrobe. Opt for neutral colours such as black, navy or grey. Additional considerations include:
• Single-breasted and double-breasted designs.
• Relaxed and structured silhouettes.
• Seasonal materials.
• Layering.
The blazer’s shoulder seam should align naturally without pulling or extending excessively beyond the shoulder line. The sleeves should extend to the wrist, and there should be sufficient room for layering underneath. For oversized blazers, ensure balanced proportions between blazer length and trouser shape to avoid overwhelming the silhouette.
A casual blazer typically features a softer construction and more relaxed silhouette than traditional tailoring. This allows for easy layering and versatile styling. Fabrics such as cotton, linen, or lightweight wool bring a sense of ease.
Consider proportion, fit and fabric when selecting a blazer. An oversized piece is the perfect foil to relaxed tailoring, while a cropped silhouette offers a multitude of styling opportunities.
Discover women’s blazers.