In theory, dressing for seasonal cycling is easy. Summer? Shorts and a jersey. Fall? Long sleeves or warmers. Winter? Ski clothes. In reality, though, the seasons aren't static, and the weather doesn't change as definitely as the picture on the calendar. Pearl Izumi built the P.R.O. Thermal Bib Knickers with enough versatility to accommodate this reality. In a world of imperfect solutions, knickers are the ultimate middle road.
The P.R.O. Thermal Bib Knickers use Pearl Izumi's Thermal fabric throughout their construction. Thermal is recommended for temperatures between 40 and 60 degrees Fahrenheit, so it slots in as the cool-weather option in Pearl's clothing line. The difference between it and the cold-weather gear, PI Softshell, is that the latter incorporates wind and water resistant fabric. The Thermal fabric focuses solely on warmth and is more breathable than the Softshell. If you don't plan on riding in torrential downpours, then Thermal is your ideal choice.
Since they're knickers, the P.R.O. Thermals are suitable for riding from mid-fall through early winter and even on sunny days in January, depending on your climate. They're a simple solution that warms your core and protects your knees during those cool autumn mornings and bright winter afternoons. For riding in the dead of frozen winter, they become the ultimate thermal base layer below a pair of chamois-free tights.
The knickers include Pearl's P.R.O. Anatomic 1:1 Chamois, which has a varied geography of light foam density ranging from 4 to 13 millimeters. Its seamless construction is unobtrusive with no abrupt edges or goofy patterning, just the right amount of support and comfort where you want it. In an industry that often thrives on extravagant, overwrought designs, the 1:1 insert is refreshingly minimalist and effective.
The Pearl Izumi P.R.O. Thermal Bib Knickers are available in five sizes ranging from Small to XX-Large in the color Black.