The Sundance Film Festival is well underway, and we're all about it (have you seen the rock royalty babe who werked Moschino on the red carpet?). The annual Park City, Utah event brings out Hollywood's finest to the slopes, where the dress code is generally snow-bunny chic. Two ladies serving up srs Sundance swag are actresses Lorenza Izzo and Saoirse Ronan, both of whom nailed it in ASOS – here's why we're obsessed.