I bought these for a 118 mile ride on rural highways. I wanted a better short than the PI Attacks which are good up to a metric century. The temperature was in the mid 80s and these provided the comfort I had hoped for.
Theo wrote Red rear lights are great for being seen (and, in Oregon, for example, a legal requirement). Clarification red rear lights satisfy ORS 815.280, as do red rear reflectors. In practice, however, don't do bad drivers' insurance defense lawyers a favor. Protect yourself with excellent lights, front and rear, day and night.
I started out wearing Smartwool and while they are comfortable, they wore out quickly. I have worn some of my Defeet Woolerators hundreds of times and they take one heck of a beating. Of course, all the great things people say about wool are true and my long-time fight with athlete's foot was won by them as well.
Been riding these for two seasons now. I've got a few other bibs made by Castelli, Pearl and LG, but I keep coming back to these for longer rides.
My Castelli bibs (which are admittedly almost twice as expensive) have more comfortable straps, but as long as a wear a mesh baselayer, these are overall considerably more comfortable for longer rides. They offer great compression and have a superior chamois.