Whats the real story behind claimed breathability in cycling gilets - are they just marketing hype or can a gilet truly prevent overheating on long climbs while still keeping the rain out? And for those who say theyve found the perfect gilet, what features and fabrics do you think make it stand out from the rest? Im still not convinced that roadies who swear by their gilets arent just brainwashed by the manufacturers - they seem to shiver at the first hint of a breeze, then sweat buckets the moment they start climbing; can a gilet really make a difference for the rest of us who dont spend all day on perfectly paved roads?