Granted, it takes a lot of effort to spin, dye, and knit millions of these fine wool fibers into a single sweater, so they come at a premium cost. But when you're cocooned in a fluffy cashmere ...

Donegal wool, named after the Irish region, is usually rendered in gray and blue, but this sweater is a blend, using a cream shade with spots of contrasting colors. [$140; clubmonaco.com ] 5.

One of the most essential business casual styles is the wool sweater, but its benefits of being warm outside can quickly turn into a hot, itchy, and confining nightmare you'll have to live with ...