MEN'S SUMMER SUITS: RELAXED TAILORING

Men's summer suits are a pillar of the COS collection. Designed with impeccable craftsmanship, this season’s trousers and jackets focus on form, with modern unstructured blazers and structural shapes coming to the fore. Adaptability is key – each piece is thoughtfully designed so it can be worn with both a smart and casual sensibility, whatever the occasion.

WHAT TO LOOK FOR IN A MEN’S SUMMER SUIT 

With the arrival of warmer weather comes an influx of events at home and away. Lightness and easy movement are a priority as temperatures rise. With an inherent ease, linen and cotton, along with relaxed fits, are fixtures of summer suiting and key elements of the menswear collection, working for any eventuality, from destination weddings to vacation looks. 

UNSTRUCTURED BLAZERS 

Unstructured suits are the hero of the summer event wardrobe and can easily be worked into smarter and more casual outfits. Unbuilt shoulders offer a lightweight solution while looser shapes maintain airflow. The three-button suit blazer is designed with shorter lapels inspired by a classic resort collar. It’s tailored from a technical cotton blend for a sporty utilitarian feel and lined in TENCEL™ Lyocell for optimal layering. More structured designs come in the form of the double-breasted blazer, rendered in linen for breathability and a sense of ease. 

RELAXED-FIT TROUSERS 

Relaxed-fit suit trousers lead the collection, balancing fluid lines with a broader silhouette, which is aided by the pure linen construction of the straight-leg pair. The cotton and linen blend of the straight-leg style creates a slightly more robust shape. Wear either with the matching jacket for summer events or pair them back with a T-shirt for a laid-back mood.  

BREATHABLE FABRICS  

This year's collection places focus on lightness and breathability, spotlighting cotton and linen. Naturally breathable and distinctively tactile, flax fibres add a supple texture and a luxurious sheen, while the compact finish of poplin lends a crisp feel. 

HOW TO STYLE SUMMER SUITS FOR MEN  

A standout of the Men’s Spring Summer 2025 collection, the summer suit has endless styling mileage – creating looks that are both put together and relaxed. A tailored shirt is the perfect accompaniment for smart events, while pairing with classic wardrobe foundations like a vest or T-shirt renders it city-ready.