(If you're looking for his 2011-12 mask, click here.)
Here's the description from The Goalie Guild: "Mason’s Sportmask design was partially inspired by former Canucks goalie Kirk McLean’s mask. The secondary Thrashers logo is an overhead silhouette laid on top of a dark navy blue base with a white cat-eye cage. The backplate has the City of Atlanta crest with pink flowers on the right side and an American flag in the shape of a Maple Leaf on the left side. Above the Atlanta crest is a Canadian flag and above that are the words Mason + MacArthur."