How crucial is it to wear a well-fitting sports bra? Aside from the comfort factor (which is obviously crucial), a supportive bra can save you from premature sagging down the line.
Research conducted by the University of Portsmouth found the breast can move up and down as much as eight inches(!) when you run, thereby breaking down connective tissue in your chest.
Remember these rules of thumb:
1. Get fitted by a pro.
2. Look for encapsulation if you’re above a B cup.
3. Never let your sports bra celebrate a birthday.