Get a suit from Speedo, TYR, or Arena.

Buying a lap swimsuit from a real swim brand is the only move. The fashion suits from Target or Amazon will look sad and baggy after about ten pool sessions.

Chlorine eats through nylon fast. A suit from a proper brand uses polyester or PBT blends that hold up for hundreds of hours. You’ll also get better shoulder mobility and a secure fit that doesn’t ride up mid-lap. For women, a stretchy one-piece or a two-piece with a tight jammer bottom is the standard. Don’t overthink it: grab something from the competitive swim section, not the beachwear aisle.

Your shoulder rotation will thank you.