Dressing for transitional weather is a tricky endeavor. Especially during the tumultuous time between winter and spring, when the weather throws you curve balls like icy temps and wind one day and upper 50s and rain the next. During this time, you're better off wearing two or three thinner layers that toe the line between sporty and refined. Pieces that are flexible, breathable and resistant to chilly temps and damp days. Herewith, some tried-and-true layers, in degrees of insulation from light to extreme.