Nice ride in this morning, it was nearly 60F. I wore shorts, a short sleeved shirt and, my rain jacket and, luckily, missed the worst of the rain-I heard it was a real downpour. Just switched to a great, new backpack and am loving it. It's a Jansport Odyssey 39 and is: comfortable, very roomy, water proof, well-built with great features. Since my last Jansport (which is currently being used by my wife) has 20 years under it's belt, I expect this to be just as durable. Also, changed brake pads the other night so, the increased braking power is really nice, especially in the rain.