Hair texturise-y products.

[Mombojombo]

Had my fairly long same-length hair cut into a very smart long bob over the weekend. Woke up ill today and couldn't be faffed to style it and it's actually dried into a rather smashing shaggy mess which I love! Feel like I've got 2 styles from one cut.

Can anyone recommend a nice light product to define the mess, please? My hair is fine and poker straight so nothing that will weigh it down too much.

Thankings in advance.