A bra for supporting the breast while maintaining its natural appearance, comprising: - an elastic band susceptible to encircle the thorax of a user comprising a front zone for contacting the chest of the user and a rear zone for contacting the back of the user; - a couple of cups for the breasts, each cup having an upper portion and a lower portion connected to said elastic band in correspondence of the front zone thereof, a central band for the mutual connection of said cups being provided, the central band having a sufficient extension to avoid the mutual lateral compression of the breasts once the bra is worn, each cup including a rigid or semirigid insert in the area below the breast, the dimensions of the cups being such as to cover almost completely the lower area and more than half of upper area of the breast; - a couple of elongated flexible support element susceptible to come at least partly into contact with the shoulder of the user, each supporting element including a first end connected to the upper portion of the respective cup and a second end connected to said elastic band in correspondence of the rear zone thereof, each of said support elements including means for adjusting the length thereof so as to adapt the bra to the body of the user, said support elements being susceptible to stay substantially parallel to each other during use; wherein each of said cups includes an outer surface and an inner surface susceptible to come into contact with the skin of the breast made of a first textile material, said inner surface including a plurality of first inserts spread over the entire inner surface of each of said cups, said first inserts being made of a first flexible polymer material chosen among silicones having a friction coefficient with the skin higher than said first textile material, said first inserts including first linear elements spaced apart each other lying on the inner surface of each of said cups, said first linear elements consisting of first continuous strips of said first flexible polymeric material or sequences of discontinuous first anti-friction elements made of said first polymeric material lying along a respective longitudinal axis, said first linear elements having a first width ( S 1) comprised between 1 mm and 5 mm; wherein the rear zone of said elastic band is sized and/or configured to minimize the movement thereof with respect to the back of the user, said elastic band including an inner surface susceptible to come into contact with the skin of the user made of a second textile material, said inner surface including at least one second insert made of a second flexible polymeric material at least at the rear zone of the said elastic band, said second flexible polymer material having a friction coefficient with the skin higher than said second textile material; wherein said first inserts have a maximum height with respect to said inner surface of less than 1 mm so that the outer surface of said cups is free of bulges visible from the outside during use of the bra, said first linear elements having a polar uniform distribution around a substantially central point of each of said cups to maximize the effect of friction on the skin while allowing a good transpiration thereto. - an elastic band susceptible to encircle the thorax of a user comprising a front zone for contacting the chest of the user and a rear zone for contacting the back of the user; - a couple of cups for the breasts, each cup having an upper portion and a lower portion connected to said elastic band in correspondence of the front zone thereof, a central band for the mutual connection of said cups being provided, the central band having a sufficient extension to avoid the mutual lateral compression of the breasts once the bra is worn, each cup including a rigid or semirigid insert in the area below the breast, the dimensions of the cups being such as to cover almost completely the lower area and more than half of upper area of the breast; - a couple of elongated flexible support element susceptible to come at least partly into contact with the shoulder of the user, each supporting element including a first end connected to the upper portion of the respective cup and a second end connected to said elastic band in correspondence of the rear zone thereof, each of said support elements including means for adjusting the length thereof so as to adapt the bra to the body of the user, said support elements being susceptible to stay substantially parallel to each other during use;