Different Batches, Different Fabrics, Cotton 100% Ribbed: Cotton 98% elastane 2% , 53 Batches, Updated Composition, Fabric: Cotton 100% Ribbed: Cotton 95.2% elastane 4.8% , 58 Batches, Updated Composition, Fabric: Cotton 100% , Knit Pocket Fabric: Cotton 100% , Woven Pocket Fabric: 66.5% polyester, 33.5% cotton