The Neo G Breathable Cotton Arm Sling is a comfortable and lightweight support made from breathable cotton. Helps support and elevate the shoulder and arm to enable a comfortable healing position after injury and help minimize movement during recovery. Useful during rehabilitation and post operative recovery, the support helps manage overstrain of ligaments, tendons and muscles by helping reduce gravitational stress at the shoulder/arm. Assistance may be required when fitting. SIZING GUIDE – To size, measure elbow to base of thumb joint (cm) – Small: 30 – 36 cm; Medium: 37 – 42 cm; Large: 43 – 48 cm.