Silicone straps that are worn under things with an open back neckline with cut line of the shoulders, etc. Putting silicone straps, you like to give a signal: my breast is not all right! It is better to pick a bra strapless (gang balconette) or purchase a convertible bra that allows you to change the location of the shoulder straps.
Lace panties of synthetic fabric. Remember: quality panties every day should consist of 80% cotton and 20% elastane, linen is not to lose their shape. In an extreme case, it has to be gusset, made of natural fabric - the same cotton. But this underwear is best left to a special occasion.