Big Ones
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The best bra for a halter or strapless dress would be a convertible bra or a strapless bra. Try the Vanity Fair convertible bra which allows you to choose how you want to wear your straps!
Woven nylon straps are the best materials for car bras.
There is no "best" bra size.
push up wire bras are the best so they dont show. hope this helps ;)
There is a certain kind of bra that adheres to the skin using a sticky substance. There is no strap on the back, the sides of the bra end underneath you're armpits, which is where the sticky stuff is that keeps it on.
Look for a demi bra - with or without padding.
you get a measuring tape, (clothing kind) rap it around the bottom of your bra, then add 5 inches.
For most formal events your best option for a bra would be a convertible bra, it comes with adjustable straps to fit almost any dress.
Generally, it is either a built0in bra in a camisole / tank top or a sports bra. For many, the first "actual" bra is called a training bra. That is the kind that is fabric, usually with no hooks or clasps, and with only minimal support.
It is best to get a full coverage bra with wider straps and at least 4 closures in the back.
i am 13yrs old and i have been wearing a bra since i was 9-10. if you are not very big but need some support i started off with a bra with no pading ot no wire, front fastning bras are also good. when you cant get the right size bra in these tpes or they become uncomfortable or dont hold up your breasts properly then you might want to go for an under wire bra or a padded bra, i hope this helps but i am only talking from personal experience.