Very realistic feeling, but on the heavy side. It weighs down the bra and pulls on shoulder straps. I would recommend getting at least one to two sizes smaller than stated. Feels comfortable even with nerve damage from a mastectomy. Like that they fit in most bras too! May try medical grade adhesive, but the weight may be too much

Used them for about a year and a half before they began to have the plastic on the chest side get worn down. I replaced the plastic with a small Ziploc bag for awhile to give some time in between my next set arriving, and it worked all right. It is definitely better new than the Ziploc bag setup.
I've slept in them, even on my stomach, though it's probably not great for them, they didn't really deform or anything. I've also worn them a day or two in a row without much issue.

If you run, jog often, or just accentuate the bouncing of your chest a lot, they may not hold up as long as mine did. Though I've worn them for just about everything without much issue. Highly recommended.

Really great product. They've lasted me over half a year so far and they look and feel really good to wear... not uncomfortable in the slightest. The thing that keeps it down for me a bit is the perpetually erect nipples, which typically aren't a huge problem but give me pause whenever I'm deciding on an outfit just slightly.

update 3-3-17... I wore them maybe 2 dozen times and not for long periods of time. One of them totally just de-laminated at the nipple and caused a small split in the silicone. I wore it again and after some serious dancing, i found that it had split completely down to the base of the boob and deep also : ( completely ruined!!! see pic. I am now going to have to downgrade from a happy 5 star to a 1 star because it was not made to last and for what they cost I should of made it thru at lest 1 year with them.

luv them! Only way to get the full effect is to attach them without a bra. I achieved this using 3M's super 7 spray adhesive which was recommended by many others who have tried it. Only warning is to make sure you have no hairs in the application area as it is quite an eye opener when removing them, lol.

Cons: with this type of breast form its only a matter of time before they tear open and become unsightly and a sticky mess... no matter how careful you are, it will eventually happen. On my 3rd set and the other 2 averaged I'd say maybe a year or so before any tears occurred. Using a Bra will most definitely protect them better I would think, so if longevity is what you want then use a bra! If realistic feel and movement is what you want then use the glue!!! : )

Exactly what the picture looks like but for 500 it was a bit small for what was intended. Wish there was a better size chart with pictures of what each size would look like on