- Fabric information - Polyester micro poplin - Fabric. Polyester mesh lined. Special features - Elasticated and drawcord waist. 2 front pockets. Concealed zipped back pocket. Zipped side opening.Washing Instructions Machine washable with pure soap flakes. Do not bleach. Do not tumble dry. Use cool iron on outer side. Do not dry clean. Wash dark colours separately. Close all fasteners before washing and drying. Do not store whilst damp. - - Fabric information - Polyester micro poplin - Fabric. Polyester mesh lined. Special features - Elasticated and drawcord waist. 2 front pockets. Concealed zipped back pocket. Zipped side opening.Washing Instructions Machine washable with pure soap flakes. Do not bleach. Do not tumble dry. Use cool iron on outer side. Do not dry clean. Wash dark colours separately. Close all fasteners before washing and drying. Do not store whilst damp.