Jessica Alba in her swimsuit on set of Dear Eleanor

Instagram/Jessica Alba

Jessica Alba had us green with envy as she officially kicked off swimsuit season in her latest Instagram offering.

The ultimate bathing beauty, Jessica posed with two of her fellow Dear Eleanor castmates, who all looked like they were having a ball donning retro beach attire - floral bathing caps galore! 

JESSICA ALBA UNVEILS HOT NEW HAIRCUT!

Ms Alba definitely won the beach style competition, however, in a vibrant, tropical-print playsuit swimming costume with sweetheart neckline.

On set filming her new movie, which follows two teenage girls in 1962 who embark on a search for Eleanor Roosevelt during the chaos of the Cuban Missile Crisis, J-Alb's been loving the retro costumes – posting plenty of snaps on her Instagram page - treating fans to shots of her gorgeous 60s style beauty, along with the actress playing dress-up in fur-trimmed coats, strings of pearls, and lashings of liquid eyeliner. 

SEE MORE OF JESSICA ALBA'S ON-SET SHOTS IN CELEBRITY TWITTER PICTURES

Jessica Alba on set of Dear Eleanor

Dear Eleanor is set to be released in 2014.

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