Nico Unicolor B3 Bamboo TurbanThe material is OEKO-TEX Standard 100 certified.Standard 100 by OEKO-TEX ® is the global safety label for textile products. Products bearing this label do not contain harmful substances in concentrations that have a negative impact on human health, including: pesticides, chlorophenols, formaldehyde, allergenic dyes, prohibited azo dyes, and extractable heavy metals.Only products that have successfully passed comprehensive and strict human ecological tests can use the STANDARD 100 by OEKO-TEX® label.Dimensions Brim width Universal Composition Exterior 95% bamboo viscose + 5% elastane Trim material 95% bamboo viscose + 5% elastane