The Patagonia Classic Retro-X fleece is made from 100% polyester, providing maximum warmth and softness. Patagonia is based on a highly sustainable system: one that uses fewer resources, discards less and better protects people's health. Patagonia recycles used soft drink bottles, unusable manufacturing waste and worn-out garments (including its own) into polyester fibres to produce new products. The use of recycled polyester reduces dependence on petroleum as a source of raw materials and toxic emissions from incinerators.