Quick answer: Good age? No.Long answer: Although K cup is extremely large and you are probably a great candidate for a breast reduction otherwise, age 15 is very young to undergo this procedure. It is very important to remember that if breast reduction is performed this young, there is a very real chance that the breasts will grow excessively large again. This is related to the level of hormones you have at that age. It is also very important to realize that breast reduction surgery is a big decision... at any age. I prefer that patients reach age 18 prior to making this decision. It will affect your perception of yourself for the rest of your life, ultimately your spouse, and possibly your ability to breastfeed. All of these are important points to discuss with your surgeon. Some surgeons will perform breast reduction surgery under age 18, but usually after much discussion.Good luck!