They're wearing Gucci Silk jumpsuit from Spring 2011

Gucci Spring 2011 silk jumpsuit
from top to bottom, left to right
Freja Beha, Laura Blokhina, Ana R, Stella Tennant, Chanel Iman, Anais Pouliot,
Cindy Crawford, Barbara Palvin, Toni Garrn

This outfit can be carried in sexy and glamour way but when putting on Freja and Stella, it changed to be tough and rock.