US: XXL to Europe Size 8.5
Cross-market men’s glove and mitten conversion mapping XXL specifications into 8.5.

Analyzing Glove Size Equivalence Across Markets
US: XXL: Features a palm circumference of 26.5 (10.4 ), finger length of 10 , hand width of 10.9 , and overall hand length of 22.5 .
Europe Size 8.5: Features a palm circumference of 22 (8.5 ), finger length of 8.5 , hand width of 9 , and overall hand length of 19.5 .