Blue Reef Hoods Size Chart
    XS SM MD LG XL XXL 3XL
Neck (widest point) in 11 13 14 15.25 16.25 17.25 18.25
cm 28 33 35.5 39 41.25 44 46.33
Head (widest point) in 19 20 22 23 24 25 26
cm 48.25 51 56 58.5 61 63.5 66

These are general guidelines only, sizes are not guaranteed. But no worries, since at Scuba.com we offer our exclusive PFF Guaranty