Hello Tarna and thank you for your question. After a formal mastopexy, I always recommend that my patients wear a (non-underwire, may indent transverse incisions) soft/supportive for two-weeks more or less round-the-clock, and then two weeks more when on their feet/active. Thereafter other less supportive bras may be safe to wear. You are absolutely right that it limits swelling, and tension on the incisions (especially when relatively weak, up to 4-6 weeks post-op, as collagen is being formed) is to be minimized, if possible (which I why I also recommend scar taping during this period). Of course all of the above should be discussed with your surgeon, who knows your unique situation and surgical results/goals.