All the nurses we spoke with reported comfort and durability as their top priorities when it comes to undergarments. Brungardt said she considers sports bras a "must" because she's often "literally running around like crazy" at work. Kelly Datino, a medical intensive care unit nurse based in New York, opts for Calvin Klein's bralettes and underwear because they're "extremely comfortable to wear for 12 hours straight." Aerie's wireless bras do the trick for Mesisca, and they get bonus points for being easy to wear without showing major seam lines under her scrubs.