What does it feel like to wear breast forms?

I had a BMX about 12 weeks ago and am not doing reconstruction. I do have a couple of mastectomy bras with Trulife foam forms (they also have a little silicone in them to give them a little weight), but only wear them occasionally. My incisions are numb, and some of the area around the incisions too, but I am still regaining feeling, so not sure what will be numb when it's all said and done. My bras don't dig into my shoulders at all; the forms are very lightweight and comfortable, and they're not hard to wear. I can't answer the hot in summer part yet but my guess is probably not--I may have this wrong, but I think the silicone forms are more likely to be heavy and hot. 

I went into surgery not planning to do the bras, but ended up deciding it wouldn't hurt to have them (mainly for certain clothes to fit better). I didn't decide/get fitted until six or seven weeks after surgery. If you wait to decide until later, you can still change your mind.

I had a uni-mx 4 years ago and have worn a prosthesis ever since.  Mine is totally comfortable that I don't even give it a second thought all day long.  I bought an Amoena Essential Light and it is not heavy.  It actually feels pretty real.  If you mashed on it and then on my natural breast for comparison, the prosthesis feels surprisingly natural.  It came with one cloth cover but I went online and bought several additional ones so I would always have a clean one to wear.  I am totally comfortable in mine and don't mind wearing it at all.  I would suggest going to someplace locally to try on some prostheses so you can try them out before buying.

Mastectomy in November and fitted for small prostheses end of December as I was an "A" before unilateral mastectomy.   My form does not bother me at all but I do tend to take it off early evening when I get home from work.   During the day at work, I basically forget it's there.  Amoena Lara molded bras seem to work well.  It's been awfully cold this winter so I'm not sure what the summer will bring quite yet.   Prior to the prostheses fitting I wore the Genie Bras which were more than comfortable to wear during the day over my incision when I returned to work and wear to sleep at night if I wanted the compression.  

I'm 4 yrs post UMX and have no problems at all with my pros. or ever 'think' about it!

I'm on the 'smaller side' too - 5'6", 120 lbs (+/- a bit any day) and wear 32 or 34 and A or B depending on the particular bra's cut/style.

My pros is no 'heavier' on my shoulder than strap on non surgery side.  No 'hotter' than the rest of me gets when it's in the 100's here.  I do all sorts of outdoor 'stuff' (horses, biking, mowing, gardening, flyfishing, swimming, etc). 

My best suggestion is to find a GOOD Certified Fitter when needed.  There are so many different styles and shapes between the different companies and we are all so differently built.  They can look at you and how you are built with an educated eye as to what would probably be best 'fit' for each of us.

I had a uni Mastectomy and have been wearing the forms for 12 Years. I rarely think about it. I have the Amoeba forms and bras. Just put it on in the morning and off at night. I have the swim form too. I took an old mastectomy bra, cut it and sewed it into my regular bathing suit. Hugs to you. .

Hey there, I am similar in size to you and prefer an A-cup. Because I had full-blown cancer, and therefore had lymph nodes removed, a normal bra irritates me. I experimented with various light foobs (fluff, beads etc.). My current go-to foobs are simple bra liners of silicone. I got mine in a lingerie store for 12 bucks. I wear them in a soft yoga top and back them with "modesty shield," the kind you get in a coobie or similar bra. 

The trick is to get a yoga top or soft bra of fairly sturdy material and where the front has a double layer of fabric. Some of them are already made to work as pockets, but otherwise just cut a small slit at the back. If the two sides are not separate, just put a few stitches down the front. It is low cost, comfortable and looks fine IMO.