Jonny Heinkenwrote a review of Pearl Izumi P.R.O. Thermal Bib Knickers - Men's on October 18, 2016
Pearl Izumi USA is based just ouside Boulder, CO. They understand cold weather cycling and excel at cold weather kit.
Keeping your knees (and sinovoal fluid) warm while riding in cool weather (shoulder seasons) is actually very important. These Pearl Izumi PRO knickers work great.
I love how the leg extends down a little further than most knickers to provide thermal protection to the calves. For this reason (among others: quality, price), these are my favorite knickers made, period. Better than others I have tried, even from the likes of Castelli and Assos.
Lastly, and worth noting, Pearl Izumi quality and QC is among the best in the business (as is their rare lifetime defect warranty).
Sizing: The fit is normal (unlike Castelli). Order your normal street size.