- Fabric information - ISOFLEX 85% Polyester 15% Elastane 4 way stretch Jersey. Quick-drying. Special features - Drawcord waist adjuster. Side leg piping detail. High elastane content for better fit and comfort.Washing Instructions Machine washable. Do not bleach. Tumble dry on low setting .Cool iron. Do not dry clean. Wash dark colours separately. Close all fasteners before washing and drying. Do not store whilst damp. - - Fabric information - ISOFLEX 85% Polyester 15% Elastane 4 way stretch Jersey. Quick-drying. Special features - Drawcord waist adjuster. Side leg piping detail. High elastane content for better fit and comfort.Washing Instructions Machine washable. Do not bleach. Tumble dry on low setting .Cool iron. Do not dry clean. Wash dark colours separately. Close all fasteners before washing and drying. Do not store whilst damp.