A Halterneck Style: Norma Kamali Halter Turtle Side Slit Gown This Norma Kamali Halter Turtle Side Slit Gown ($97, originally $145) oozes easy elegance, and it'll help you retain a sense of comfort all night. The side slit dials up the allure, and it's an invitation to wear your favourite heeled sandals. Image Source: amazon.com Norma Kamali Halter Turtle Side Slit Gown $97 from amazon.com Buy Now