Soften the vermicelli noodles in a large bowl by covering with boiling water and soaking for five to six minutes or until tender. Rinse under cold water, drain, and add to a large bowl.
Add the shredded carrots, cucumbers and herbs to the noodles.
In a glass jar fitted with a lid or a bowl, mix together the fish sauce, lime juice, maple syrup and oil.
Pour 3/4 of the dressing over the noodles and toss to coat.
Add more dressing if desired then sprinkle with a squeeze of lime if desired.