We started our ride at 44º on Sunday morning. First time I needed to wear a vest in a while. It warmed up quickly though so before long the vest and arm warmers came off. Starting at 44º in sunny calm conditions when it will warm to 80º is way different than later in the year when it might be 44º cloudy windy and only getting to 50º. I can adjust to almost anything but the sudden changes that come in the Fall can be a shock to the system.