The Mega Lifer is the largest shell size in the S1 Lifer family, designed for head circumferences between (approx. 58.4 cm to 64.7 cm). Head Circumference (cm) Liner Color Code Small Medium Large XL XXL XXXL
If you are looking for this specific code, you are likely looking for Hikaru Sone during a specific era of her career. Here is a breakdown of why this title is often considered a "top" pick by enthusiasts: sone012 top