When buying a comfortable summer suit, men are wise to start with the fabric. Indeed, most fashion gurus suggest eschewing wool in favour of lighter materials like cotton or linen. Such a move has both pros and cons. Yes, cotton and linen are more lightweight, but they’re also less resilient. Wool, by contrast, might be heavier in bulk, but it’s also commonly more breathable. Furthermore, there’s a middle ground in the form of trans-seasonal fabrics like Merino Cool Wool, which employs ultra-thin fibres to retain a lightweight, breathable feel. If wool just sounds too heavy, consider getting a linen or seersucker (cotton) suit for the summer. The former is super light on the body while the latter is more absorbent and thereby good for controlling body odour. And stay away from polyester altogether.