JB's Shape Staying elastane rib crew neck 100% Cotton for 100% comfort *13% marle and snow marle: Cotton/Viscose blend *Denim, Graphite: Cotton/Polyester *Charcoal, Grey Marle: Polyester/Cotton Self-fabric tape on inside of neck and shoulders for improved stability Heavy 190gsm ring spun Jersey knit fabric Twin needle double stitched seams Complies with Standard AS/NZS 4399:2017 for UPF Protection Vertical side seams minimise twist in the teeâs body