100% Cotton. Design: Butterflies, Printed, Sunflower. Neckline: Crew Neck. Sleeve-Type: Short-Sleeved. Fabric Technology: Breathable, Lightweight, UV Protection. Fit: Relaxed Fit. Conforms to Safety Standard: Regulation (EU) 2016/425 Personal Protective Equipment Category 2. Sun Rating: UPF 50. 4 UK, 6 UK: 33 in. 8 UK: 34 in. 12 UK: 37 in. 14 UK: 39 in. 20 UK: 47 in. 22 UK: 50 in. 24 UK: 52 in. 18 UK: 44 in. 16 UK: 41 in. Ref: UTMW4080