There are many 'decent' vests out there, but an 'amazing' vest must be packable, ultralight, and provide a solid barrier against both the wind and rain. Oh, and it also needs to breathe. Not surprisingly, the Pearl Izumi P. R. O. Barrier Lite Vest succeeds on all accounts it blocks the elements and lets body heat escape, yet is so unobtrusive when tucked away in your jersey pocket that you won't think twice about stuffing it in there alongside your other riding essentials. The vest was constructed using Pearl Izumi's P. R. O. Barrier Lite fabric. This is a lightweight, breathable material that's perfectly suited for the sort of weather changes that we often face during a volatile spring afternoon on the road. Made from tightly woven monofilament materials, the Barrier Lite fabric provides you with protection from the elements while still allowing your torso to breathe and avoid moisture overload. Its versatility is one reason to use it as a wind breaker on high speed descents, a rain protector during flash storms in the summer, or even as an extra layer to take along for winter rides just in case. The vest has been anatomically designed to allow a layer underneath it, yet at the same time, it's cut close enough to the body to prevent excess fabric from flapping in the wind. Panels of Softshell Lite were also added to the composition, adding a bit of stretch to the vest. Elasticized hem and arm holes maintain a secure fit over your jersey, and the full length front zipper makes entry and exit of the vest while riding an easy task. Rounding out the construction, Izumi included reflective accents that increase your visibility to motorists in low light conditions. The Pearl Izumi P. R. O. Barrier Lite Vest is available in sizes Small through XX Large and in the colors Blackblack, Screaming Yellowelectric blue, True Redblack, and White.