Polyester Thermal Insulation Batts Enquire for Pricing Higgins Polyester is a trusted and Australian wide respected insulation brand manufactured in Brisbane. The polyester used in Higgins insulation products has non-allergenic properties and is safe for asthma sufferers. Polyester is the only fibrous insulation approved by Asthma Foundations Australia for unrestricted use in low allergen or asthma friendly buildings. See ‘Specifications’ below for a full list of R rating options available. Add to Quote