HELP! Deciding between allergan inspira cohesive 320cc low plus profile or 360cc moderate profile

It's best to try implant sizers in the office to see how they fit your frame and to rely on the opinion of your health care provider as they will also assess the thickness of your tissues and how they will cover the implant.
In my experience, the low plus does not give a very shapely breast because it has very little projection. This makes me concerned that your breasts will be larger but may look wider, as the volume will be mostly at the base of the breast rather than in the projection of the breast. Because you use the word deflated to describe your breasts, the moderate is likely better for you. Moderate profile implants do not give highly projected breasts, they give medium projection.

Thank you for your question. I would rely on the plastic surgeon that you have chosen to perform your breast augmentation to do a sizing evaluation by placing implants into a bra so that you can feel the different sizes.

I do not believe that a 320 cc low profile plus will give you the D cup or double D cup that you desire.

In my experience 350-360 cc breast implants typically will give you a full see small D. A double D would most likely require an implant in the 400 cc range.

Most women today prefer at least some projection in addition to the width of the breast. In my practice it is rare to use a low profile breast implant. I hope this helps.