Some tips from Sola wetsuits (I think they apply to all brands):
  • Your suit will most likely get damaged when you pull it on or off. Take care not to snag the fabric or pull the stretch out of it; just slide your suit on or off. Fingernails are the biggest culprit in damaging neoprene.
  • Rinse your wetsuit after use.
  • Don't urinate in your suit: urine and neoprene do not mix. Urine breaks down the bonds that hold your suit together.
  • Avoid all chemicals and detergents, and do not tumble-dry your wetsuit.