Completely See-Through
You'll need a slip if you don't want the outline PLUS color of your undergarments showing.
Response from Lulus.com:
Hello Lynn, thanks for your review! We're sorry to hear that this dress didn't work out for you. At Lulus we want you to feel comfortable and confident wearing our products. Our team of stylists (lulus.com/customerservice) would be happy to help you find items you love! Xo