MATTEAU Gathered organic cotton and silk blend midi dress NET A PORTER MATTEAU Organic cotton and silk blend halterneck maxi dress NET A PORTER Matteau Net Sustain Floral print Organic Silk Crepe De Chine Maxi Dress MATTEAU Pintucked organic cotton and silk blend maxi dress NET A PORTER. Matteau blue maxi dress, made in Australia from organic cotton blended with a touch of silk and suspends from slender straps. Brand size: UK 10 Material: 70% organic cotton, 30% silk Condition: Very good RRP: 240