Style bible Vogue tells me this morning that this floppy beanie hat, as worn by Sienna Miller is the "It" accessory of the summer. Who knew? Not me, anyway: not being much of a hat person (they make me feel like I’m in fancy dress), it wouldn’t really occur to me to wear a wooly hat in the summer, but then again, I wouldn’t wear most of the things Sienna Miller is seen in, so maybe I’m not the best person to judge. What about you, though? Will you be reaching for a beanie this summer, or will you be leaving them all for "Style Icon" Sienna to snap up?