ANGOOLPadded Sports Bra Wirefree Mid Impact Yoga Bras Unique Cross Back Strappy for Gym Yoga

What size for 36dd please

Should it be tight on the shoulders, to where it makes me ache a bit or should I return it and get a size up?

What is the best size for a 34 dd please?

I'm a 40d, not sure if i should go large or x-large. any suggestions? also, does this offer much support?