Made of 100% rib-knit cottonWe're making a difference! We've proudly partnered with Better Cotton to improve cotton farming globally. When you buy cotton styles from us, you're helping to support sustainable cotton farming. Learn more at bettercotton.org/massbalance.Pack of 7 briefs includes:4 solid pairs3 striped pairsPull-on elasticized waistbandTagless labelImportedOEKO-TEX® STANDARD 100 CertifiedOEKO-TEX® Certification Number: 22.HIN.48805 HOHENSTEIN HTTI