The 2-in-1 Darien concept is built around a three-quarter-length Cordura and Gore-Tex shell. The Gore-Tex is actually welded to the nylon, and the seams are heat-sealed like a rainsuit, making the shell very waterproof in all but extreme and enduring downpours where you might find some leakage occurring around the zippered openings. You select the jacket's liner when you make your purchase, choosing from standard, lightweight, electric and windbloc-equipped. Of course, more than one is best. The liners are reversible and fleece-lined and look groovy worn off the bike, too. You use the liner's existing front zipper to attach it to the suit--just put it on first and then pull the jacket shell over it. How simple, and it works beautifully. Strong points include versatility--without the liner and with full venting at work, you can absolutely ride all summer in comfort. In the winter, if you have the electric liner, you can easily survive a ride in freezing temps. The jacket and the matching overpants (black only) come equipped with our favorite armor system, too, which uses molded TF2, a soft, flexible material that stiffens on impact. You hardly know it's there until you need it, and when you need it, I can tell you personally that it performs. The Darien is also completely washable. Just remove the armor first and wash it whenever you stink it up.