The Assos MILLE GT Spring Fall long-sleeve jersey updates its S11 platform with a less restrictive fit across the chest, built for the upright position long shoulder-season rides demand. A 250g/m^2 RX fabric front panel adds thermal insulation without sacrificing breathability, so the jersey holds warmth through a cool morning without turning into a sweatbox once the sun comes up. What Our Gearhead(R) Experts Are Saying:"I noticed the new fit most on a three-hour fall ride sitting more upright than I would in summer, and the chest never felt boxed in the way older thermal jerseys have. It breathes well enough that I never had to unzip once the temperature climbed past the morning chill."