100% Cotton for 100% comfort *13% marle: Cotton/Viscose *Denim, Graphite: Cotton/Polyester *Charcoal, Grey Marle: Polyester/Cotton JB's shape staying Elastane rib crew neck Vertical side seams minimise twist in the teeâs body Complies with Standard AS/NZS 4399:2017 for UPF Protection Urban Fit