Self: 37% organic pima cotton, 27% lyocell, 27% recycled polyester, 9% elastaneRib: 38% organic pima cotton, 29% recycled polyester, 28% lyocell, 5% elastane Machine wash cold Lightweight jersey fabric Made in Peru Our Style No. LULR-MS2 Manufacturer Style No. LM3GTOS-N999904 Model is wearing size M. of this item.