After a few months of sun-filled, bare-legged bliss, the thought of long trousers and heavy knitwear seems daunting (and slightly depressing). The shifting seasons present an especially overwhelming challenge. Some days are still scorching, while others have a distinctly fall-like chill. Here’s our best shot at pieces to handle the hot/cold with ease (think long-sleeved tops, very fine or cotton knits, lightweight jackets and blazers). Done.