Always hand wash your swimsuit using a mild detergent, or speciality swimwear wash. Dry naturally, not in a tumble dryer.
Always shower after a swim. It doesn’t matter if you’ve been in the sea, a pool or hot tub. Salt, chlorine and bromide will all cause untold damage to your beautiful new swimsuit, so stand under a lukewarm shower and rinse yourself off.
Never lie in the sun straight after a swim. A combination of a wet swimsuit and the heat from the sun will fade the colours and loosen the elasticity, so lie in the shade to dry off.
Be careful when you sit on the edge of the pool as high grip surfaces can snag your swimsuit.