Let's get straight to it — here's what actually matters on this one.

• Linen leads for pure breathability and fast drying, ideal for the hottest, most humid days.
• Lightweight cotton (under 150 GSM) is the most versatile all-rounder, working across casual and semi-formal summer occasions.
• Seersucker's textured weave keeps fabric from clinging to skin, a genuine comfort advantage in sticky heat.
• Avoid heavier twills, most synthetics, and anything above 200 GSM for peak summer — they trap heat regardless of how 'breathable' they're marketed.

The fit-and-fabric-health takeaway: Summer comfort comes down to breathability and fit working together — even the best summer fabric underperforms if worn too snug.

Next up: check out our guide on which fabrics are actually monsoon-proof.