A special thermal process turns Polyester fibresinto top quality technical Thermo ProLoft® insulating fleece. The combinationof dense and hollow fibres results in the prefect blend betweendurability, weight and warmth properties – a fleece materialthat is easy care and durable yet compact and offers excellent insulationat minimal weight. The synthetic fibres also absorb very littlemoisture. Short drying times, excellent loft and thus insulation propertieseven when damp, are all advantageous characteristics. DeuterThermo ProLoft® is also coated with a thin layer of silicone to give itgood lofting properties.