You may have scoped out some serious-looking running shoes, a cosy yet stylish hoodie or the latest leggings, but when it comes to exercise gear, a good sports bra should be top of the list.
And it pays to get the right fit - experts claim wearing the wrong size sports bra can not only lead to neck, back and breast pain, it can also cause irreparable damage to the ligaments inside the breast, leading to drooping and stretch marks.
An international study by lingerie brand Triumph found that nearly two-thirds of women wear the wrong size bra, and experts believe that the same goes for sports bras.
"If you wear the wrong regular bra, you're probably going to be wearing the wrong sports bra, Febin Melepura, a pain specialist at Stanford Pain and Sports Medicine in New York told the Daily Mail.
"The breast is held together by fatty tissue and Cooper's ligaments, and with the stress of movement, it does stretch out, and it doesn't go back," he said.