After a 3.73 mile walk this morning, my sports bra was soaked.  Getting hot here.  When taking it off, I noticed that it is losing its support.  I've only had it for 5 months.  After 67lb loss over 2 years.  At 177lbs.  Thank goodness it is cheap.  I will order a smaller size.  I am on the last hooks on my bras and they not giving the "hug".  I had 40C and now may need 38C.  A fitting will determine this.  This will be much more expensive, since I need to travel 200+ miles to get it done.  
At 75 I shouldn't care who knows, but I do.