The OB Classic Swim Shorts, the Springer, Setter, Bulldog and Dane II, are indeed suitable for use in salt water and chlorine. Our material is tested to 50mg of chlorine per litre of water, whilst the average pool has 14mg. They have also been tested for salt water and oil. However we have had some complaints of staining due to uncommon substance, such as copper, in pools in Greece and Turkey. As with most fabrics, ours is not stain resistant.