Rain adds another degree of complexity to your clothing choices. If temperatures range from 33 to 45 degrees and it’s dry, you can get away with a long-sleeve jersey and a thermal vest. Throw in precipitation, and you’ll need to don a few extra layers to keep your core warm.
Tetrick suggests you ditch the vest and long-sleeve jersey and instead opt for layering a thermal jacket overtop a long-sleeve base layer for warmth and wearing a shell like the barrier jacket to keep you dry.
Water has a nasty way of winding up in your shoes, so choose a set of waterproof neoprene covers with a tight neck, and match them with a set of water-resistant tights overtop your leg warmers and bibs.
Even at warmer temperatures, if it’s raining you’re going to want to wear a rain jacket and pack a few extra layers in your jersey pockets. You can’t go wrong with a pair of arm warmers and a vest.