Simplicity1356 Easy to Sew Women's Reversible Wrap Dress Sewing Pattern, Sizes 6-14

How many yards of fabric do you need? I don't see that on the package back.

Does this blow open easily and cause wardrobe malfunctions? Want to make it for campus wear, lots of walking and it is a windy town

Does it have to be made reversible?

can you use a crushed velvet material?