With a trip to Turks and Caicos coming up, I needed a new bikini. Canyon Beachwear had an enormous selection. My favorite was this sleek, white Calvin Klein suit with a silver buckled closure. The color was a dangerous choice—when wet, it would become transparent. But the lining, I was assured by the salesman, would prevent any embarrassing slips and peeks. Even though my gym membership was just two weeks old, the halter top and low-rise bottom made me look more like a Bond Girl than a butterball. 1136 Third Ave., nr. 66th St.; 917-432-0732.