She paired the dress with semi-sheer black tights ... also wore a slinky silk slip dress with a sheer lace bust and another ...

While sitting front row alongside Olympian Lindsey Vonn and businesswoman Kelly Sawyer, Alba looked ready for spring in a boxy white coat dress ... some skin in a black lace bra with a plunging ...

while the skirt featured matching sheer lace panels. The spaghetti straps and the thin belt both featured gold bead detailing. She paired the dress with semi-sheer black tights, black strappy open ...