H & M Boys Size 10 (age 9-10) Textured navy blue suit Jacket and pants COMPOSITION Cotton 80%, Linen 20% Cotton Cotton is a soft and versatile natural fiber harvested from the cotton plant. Linen Linen is a natural bast fiber derived from flax plants. Recycled polyester Recycled polyester is polyester made from PET bottles or end-of-life textile waste. The PET bottles or textile waste is mechanically recycled and processed into new yarn.