OQQWomen's 3 Piece Medium Support Tank Top Ribbed Seamless Removable Cups Workout Exercise Sport Bra

Are these padded?

I’m a 42D bra, would a large fit me?

I wear a 30D, 29in band and 33.5in bust. Would a large fit? I normally wear medium :o

Is there a big size difference between small and medium? Wondering if I should order a small instead since the straps and from are a bit loose on me