Nico bamboo Turban Unicolor B35The material is OEKO-TEX Standard 100 certified. Standard 100 by OEKO-TEX ® is the global safety mark for textile products. Products bearing this mark do not contain harmful substances in concentrations that negatively impact 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® mark. Dimensions Brim width Universal Composition Exterior 95% bamboo viscose + 5% elastane Trim material 95% bamboo viscose + 5% elastane