Conjure summer style and the pictures in your head are invariably the same: Frothy, airy, breezy on the one hand, short, sexy, punchy on the other. There’s not a lot of room in the summer wardrobe for tough-girl chic, functional and urbane fashion with a touch of baditude. Last summer, girls in New York walked around town in slouchy boots, barely conceding the look to July’s weeklong, 100 degree heat wave; behind that look, I suspect, was the urge to toughen up last summer’s gossamer shifts. We’ve got more shifts in store this coming heat wave season, as well as a summer due, as the last ones have, to break all kinds of temperature records. Boots are out. Instead, look to smart designers like Tiffany Tuttle to fill the void: The Chaconne sandal in her LD Tuttle line beats the heat with some punkish panache, courtesy of the black studs poking out of the leather. If flip-flops bleat, these sandals snarl. Midnight-blue pedicure optional.